21572460

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:477

約数の個数: 192

約数和(自身を含む): 82790400

約数和(自身を除く): 61217940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 351, 364, 378, 390, 420, 439, 455, 468, 540, 546, 585, 630, 702, 756, 780, 819, 878, 910, 945, 1092, 1170, 1260, 1317, 1365, 1404, 1638, 1755, 1756, 1820, 1890, 2195, 2340, 2457, 2634, 2730, 3073, 3276, 3510, 3780, 3951, 4095, 4390, 4914, 5268, 5460, 5707, 6146, 6585, 7020, 7902, 8190, 8780, 9219, 9828, 11414, 11853, 12285, 12292, 13170, 15365, 15804, 16380, 17121, 18438, 19755, 22828, 23706, 24570, 26340, 27657, 28535, 30730, 34242, 36876, 39510, 39949, 46095, 47412, 49140, 51363, 55314, 57070, 59265, 61460, 68484, 79020, 79898, 82971, 85605, 92190, 102726, 110628, 114140, 118530, 119847, 138285, 154089, 159796, 165942, 171210, 184380, 199745, 205452, 237060, 239694, 256815, 276570, 308178, 331884, 342420, 359541, 399490, 414855, 479388, 513630, 553140, 599235, 616356, 719082, 770445, 798980, 829710, 1027260, 1078623, 1198470, 1438164, 1540890, 1659420, 1797705, 2157246, 2396940, 3081780, 3595410, 4314492, 5393115, 7190820, 10786230, 21572460]

約数ペア:

[(1, 21572460), (2, 10786230), (3, 7190820), (4, 5393115), (5, 4314492), (6, 3595410), (7, 3081780), (9, 2396940), (10, 2157246), (12, 1797705), (13, 1659420), (14, 1540890), (15, 1438164), (18, 1198470), (20, 1078623), (21, 1027260), (26, 829710), (27, 798980), (28, 770445), (30, 719082), (35, 616356), (36, 599235), (39, 553140), (42, 513630), (45, 479388), (52, 414855), (54, 399490), (60, 359541), (63, 342420), (65, 331884), (70, 308178), (78, 276570), (84, 256815), (90, 239694), (91, 237060), (105, 205452), (108, 199745), (117, 184380), (126, 171210), (130, 165942), (135, 159796), (140, 154089), (156, 138285), (180, 119847), (182, 118530), (189, 114140), (195, 110628), (210, 102726), (234, 92190), (252, 85605), (260, 82971), (270, 79898), (273, 79020), (315, 68484), (351, 61460), (364, 59265), (378, 57070), (390, 55314), (420, 51363), (439, 49140), (455, 47412), (468, 46095), (540, 39949), (546, 39510), (585, 36876), (630, 34242), (702, 30730), (756, 28535), (780, 27657), (819, 26340), (878, 24570), (910, 23706), (945, 22828), (1092, 19755), (1170, 18438), (1260, 17121), (1317, 16380), (1365, 15804), (1404, 15365), (1638, 13170), (1755, 12292), (1756, 12285), (1820, 11853), (1890, 11414), (2195, 9828), (2340, 9219), (2457, 8780), (2634, 8190), (2730, 7902), (3073, 7020), (3276, 6585), (3510, 6146), (3780, 5707), (3951, 5460), (4095, 5268), (4390, 4914)]