18977608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{727}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 38525760

約数和(自身を除く): 19548152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 251, 502, 727, 1004, 1454, 2008, 2908, 3263, 5816, 6526, 9451, 13052, 18902, 26104, 37804, 75608, 182477, 364954, 729908, 1459816, 2372201, 4744402, 9488804, 18977608]

約数ペア:

[(1, 18977608), (2, 9488804), (4, 4744402), (8, 2372201), (13, 1459816), (26, 729908), (52, 364954), (104, 182477), (251, 75608), (502, 37804), (727, 26104), (1004, 18902), (1454, 13052), (2008, 9451), (2908, 6526), (3263, 5816)]