18140518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 31177728

約数和(自身を除く): 13037210

約数列:

[1, 2, 11, 22, 31, 62, 67, 134, 341, 397, 682, 737, 794, 1474, 2077, 4154, 4367, 8734, 12307, 22847, 24614, 26599, 45694, 53198, 135377, 270754, 292589, 585178, 824569, 1649138, 9070259, 18140518]

約数ペア:

[(1, 18140518), (2, 9070259), (11, 1649138), (22, 824569), (31, 585178), (62, 292589), (67, 270754), (134, 135377), (341, 53198), (397, 45694), (682, 26599), (737, 24614), (794, 22847), (1474, 12307), (2077, 8734), (4154, 4367)]