21048856

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 23274344

約数列:

[1, 2, 4, 8, 17, 34, 37, 47, 68, 74, 89, 94, 136, 148, 178, 188, 296, 356, 376, 629, 712, 799, 1258, 1513, 1598, 1739, 2516, 3026, 3196, 3293, 3478, 4183, 5032, 6052, 6392, 6586, 6956, 8366, 12104, 13172, 13912, 16732, 26344, 29563, 33464, 55981, 59126, 71111, 111962, 118252, 142222, 154771, 223924, 236504, 284444, 309542, 447848, 568888, 619084, 1238168, 2631107, 5262214, 10524428, 21048856]

約数ペア:

[(1, 21048856), (2, 10524428), (4, 5262214), (8, 2631107), (17, 1238168), (34, 619084), (37, 568888), (47, 447848), (68, 309542), (74, 284444), (89, 236504), (94, 223924), (136, 154771), (148, 142222), (178, 118252), (188, 111962), (296, 71111), (356, 59126), (376, 55981), (629, 33464), (712, 29563), (799, 26344), (1258, 16732), (1513, 13912), (1598, 13172), (1739, 12104), (2516, 8366), (3026, 6956), (3196, 6586), (3293, 6392), (3478, 6052), (4183, 5032)]