21291240092

素因数分解:

$2^2\times {\mathrm{1787}}^1\times {\mathrm{2978629}}^1$

素因数の和:2980420

約数の個数: 12

約数和(自身を含む): 37280533080

約数和(自身を除く): 15989292988

約数列:

[1, 2, 4, 1787, 3574, 7148, 2978629, 5957258, 11914516, 5322810023, 10645620046, 21291240092]

約数ペア:

[(1, 21291240092), (2, 10645620046), (4, 5322810023), (1787, 11914516), (3574, 5957258), (7148, 2978629)]