18287968

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 37721376

約数和(自身を除く): 19433408

約数列:

[1, 2, 4, 8, 16, 32, 41, 53, 82, 106, 164, 212, 263, 328, 424, 526, 656, 848, 1052, 1312, 1696, 2104, 2173, 4208, 4346, 8416, 8692, 10783, 13939, 17384, 21566, 27878, 34768, 43132, 55756, 69536, 86264, 111512, 172528, 223024, 345056, 446048, 571499, 1142998, 2285996, 4571992, 9143984, 18287968]

約数ペア:

[(1, 18287968), (2, 9143984), (4, 4571992), (8, 2285996), (16, 1142998), (32, 571499), (41, 446048), (53, 345056), (82, 223024), (106, 172528), (164, 111512), (212, 86264), (263, 69536), (328, 55756), (424, 43132), (526, 34768), (656, 27878), (848, 21566), (1052, 17384), (1312, 13939), (1696, 10783), (2104, 8692), (2173, 8416), (4208, 4346)]