21005416

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19429784

約数列:

[1, 2, 4, 8, 59, 118, 191, 233, 236, 382, 466, 472, 764, 932, 1528, 1864, 11269, 13747, 22538, 27494, 44503, 45076, 54988, 89006, 90152, 109976, 178012, 356024, 2625677, 5251354, 10502708, 21005416]

約数ペア:

[(1, 21005416), (2, 10502708), (4, 5251354), (8, 2625677), (59, 356024), (118, 178012), (191, 109976), (233, 90152), (236, 89006), (382, 54988), (466, 45076), (472, 44503), (764, 27494), (932, 22538), (1528, 13747), (1864, 11269)]