21046340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34111420

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 37, 68, 70, 74, 85, 119, 140, 148, 170, 185, 238, 239, 259, 340, 370, 476, 478, 518, 595, 629, 740, 956, 1036, 1190, 1195, 1258, 1295, 1673, 2380, 2390, 2516, 2590, 3145, 3346, 4063, 4403, 4780, 5180, 6290, 6692, 8126, 8365, 8806, 8843, 12580, 16252, 16730, 17612, 17686, 20315, 22015, 28441, 33460, 35372, 40630, 44030, 44215, 56882, 61901, 81260, 88060, 88430, 113764, 123802, 142205, 150331, 176860, 247604, 284410, 300662, 309505, 568820, 601324, 619010, 751655, 1052317, 1238020, 1503310, 2104634, 3006620, 4209268, 5261585, 10523170, 21046340]

約数ペア:

[(1, 21046340), (2, 10523170), (4, 5261585), (5, 4209268), (7, 3006620), (10, 2104634), (14, 1503310), (17, 1238020), (20, 1052317), (28, 751655), (34, 619010), (35, 601324), (37, 568820), (68, 309505), (70, 300662), (74, 284410), (85, 247604), (119, 176860), (140, 150331), (148, 142205), (170, 123802), (185, 113764), (238, 88430), (239, 88060), (259, 81260), (340, 61901), (370, 56882), (476, 44215), (478, 44030), (518, 40630), (595, 35372), (629, 33460), (740, 28441), (956, 22015), (1036, 20315), (1190, 17686), (1195, 17612), (1258, 16730), (1295, 16252), (1673, 12580), (2380, 8843), (2390, 8806), (2516, 8365), (2590, 8126), (3145, 6692), (3346, 6290), (4063, 5180), (4403, 4780)]