21154042

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2473}}^1$

素因数の和:2542

約数の個数: 32

約数和(自身を含む): 39900672

約数和(自身を除く): 18746630

約数列:

[1, 2, 7, 13, 14, 26, 47, 91, 94, 182, 329, 611, 658, 1222, 2473, 4277, 4946, 8554, 17311, 32149, 34622, 64298, 116231, 225043, 232462, 450086, 813617, 1511003, 1627234, 3022006, 10577021, 21154042]

約数ペア:

[(1, 21154042), (2, 10577021), (7, 3022006), (13, 1627234), (14, 1511003), (26, 813617), (47, 450086), (91, 232462), (94, 225043), (182, 116231), (329, 64298), (611, 34622), (658, 32149), (1222, 17311), (2473, 8554), (4277, 4946)]