21904910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3719}}^1$

素因数の和:3776

約数の個数: 32

約数和(自身を含む): 42854400

約数和(自身を除く): 20949490

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 3719, 5890, 7438, 18595, 37190, 70661, 115289, 141322, 230578, 353305, 576445, 706610, 1152890, 2190491, 4380982, 10952455, 21904910]

約数ペア:

[(1, 21904910), (2, 10952455), (5, 4380982), (10, 2190491), (19, 1152890), (31, 706610), (38, 576445), (62, 353305), (95, 230578), (155, 141322), (190, 115289), (310, 70661), (589, 37190), (1178, 18595), (2945, 7438), (3719, 5890)]