21260044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3821}}^1$

素因数の和:3945

約数の個数: 24

約数和(自身を含む): 40452048

約数和(自身を除く): 19192004

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3821, 5564, 7642, 15284, 49673, 99346, 198692, 408847, 817694, 1635388, 5315011, 10630022, 21260044]

約数ペア:

[(1, 21260044), (2, 10630022), (4, 5315011), (13, 1635388), (26, 817694), (52, 408847), (107, 198692), (214, 99346), (428, 49673), (1391, 15284), (2782, 7642), (3821, 5564)]