18467984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1647

約数の個数: 40

約数和(自身を含む): 38792160

約数和(自身を除く): 20324176

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1579, 2924, 3158, 5848, 6316, 11696, 12632, 25264, 26843, 53686, 67897, 107372, 135794, 214744, 271588, 429488, 543176, 1086352, 1154249, 2308498, 4616996, 9233992, 18467984]

約数ペア:

[(1, 18467984), (2, 9233992), (4, 4616996), (8, 2308498), (16, 1154249), (17, 1086352), (34, 543176), (43, 429488), (68, 271588), (86, 214744), (136, 135794), (172, 107372), (272, 67897), (344, 53686), (688, 26843), (731, 25264), (1462, 12632), (1579, 11696), (2924, 6316), (3158, 5848)]