21343140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1303}}^1$

素因数の和:1338

約数の個数: 144

約数和(自身を含む): 79742208

約数和(自身を除く): 58399068

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1303, 1365, 1638, 1820, 2340, 2606, 2730, 3276, 3909, 4095, 5212, 5460, 6515, 7818, 8190, 9121, 11727, 13030, 15636, 16380, 16939, 18242, 19545, 23454, 26060, 27363, 33878, 36484, 39090, 45605, 46908, 50817, 54726, 58635, 67756, 78180, 82089, 84695, 91210, 101634, 109452, 117270, 118573, 136815, 152451, 164178, 169390, 182420, 203268, 234540, 237146, 254085, 273630, 304902, 328356, 338780, 355719, 410445, 474292, 508170, 547260, 592865, 609804, 711438, 762255, 820890, 1016340, 1067157, 1185730, 1422876, 1524510, 1641780, 1778595, 2134314, 2371460, 3049020, 3557190, 4268628, 5335785, 7114380, 10671570, 21343140]

約数ペア:

[(1, 21343140), (2, 10671570), (3, 7114380), (4, 5335785), (5, 4268628), (6, 3557190), (7, 3049020), (9, 2371460), (10, 2134314), (12, 1778595), (13, 1641780), (14, 1524510), (15, 1422876), (18, 1185730), (20, 1067157), (21, 1016340), (26, 820890), (28, 762255), (30, 711438), (35, 609804), (36, 592865), (39, 547260), (42, 508170), (45, 474292), (52, 410445), (60, 355719), (63, 338780), (65, 328356), (70, 304902), (78, 273630), (84, 254085), (90, 237146), (91, 234540), (105, 203268), (117, 182420), (126, 169390), (130, 164178), (140, 152451), (156, 136815), (180, 118573), (182, 117270), (195, 109452), (210, 101634), (234, 91210), (252, 84695), (260, 82089), (273, 78180), (315, 67756), (364, 58635), (390, 54726), (420, 50817), (455, 46908), (468, 45605), (546, 39090), (585, 36484), (630, 33878), (780, 27363), (819, 26060), (910, 23454), (1092, 19545), (1170, 18242), (1260, 16939), (1303, 16380), (1365, 15636), (1638, 13030), (1820, 11727), (2340, 9121), (2606, 8190), (2730, 7818), (3276, 6515), (3909, 5460), (4095, 5212)]