19985886

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{11939}}^1$

素因数の和:11981

約数の個数: 32

約数和(自身を含む): 45849600

約数和(自身を除く): 25863714

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674, 11939, 23878, 35817, 71634, 107451, 214902, 322353, 370109, 644706, 740218, 1110327, 2220654, 3330981, 6661962, 9992943, 19985886]

約数ペア:

[(1, 19985886), (2, 9992943), (3, 6661962), (6, 3330981), (9, 2220654), (18, 1110327), (27, 740218), (31, 644706), (54, 370109), (62, 322353), (93, 214902), (186, 107451), (279, 71634), (558, 35817), (837, 23878), (1674, 11939)]