18861712

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:407

約数の個数: 40

約数和(自身を含む): 37959872

約数和(自身を除く): 19098160

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 151, 211, 296, 302, 422, 592, 604, 844, 1208, 1688, 2416, 3376, 5587, 7807, 11174, 15614, 22348, 31228, 31861, 44696, 62456, 63722, 89392, 124912, 127444, 254888, 509776, 1178857, 2357714, 4715428, 9430856, 18861712]

約数ペア:

[(1, 18861712), (2, 9430856), (4, 4715428), (8, 2357714), (16, 1178857), (37, 509776), (74, 254888), (148, 127444), (151, 124912), (211, 89392), (296, 63722), (302, 62456), (422, 44696), (592, 31861), (604, 31228), (844, 22348), (1208, 15614), (1688, 11174), (2416, 7807), (3376, 5587)]