18737456

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{863}}^1$

素因数の和:953

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19831504

約数列:

[1, 2, 4, 8, 16, 23, 46, 59, 92, 118, 184, 236, 368, 472, 863, 944, 1357, 1726, 2714, 3452, 5428, 6904, 10856, 13808, 19849, 21712, 39698, 50917, 79396, 101834, 158792, 203668, 317584, 407336, 814672, 1171091, 2342182, 4684364, 9368728, 18737456]

約数ペア:

[(1, 18737456), (2, 9368728), (4, 4684364), (8, 2342182), (16, 1171091), (23, 814672), (46, 407336), (59, 317584), (92, 203668), (118, 158792), (184, 101834), (236, 79396), (368, 50917), (472, 39698), (863, 21712), (944, 19849), (1357, 13808), (1726, 10856), (2714, 6904), (3452, 5428)]