21805563

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1049}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 32281200

約数和(自身を除く): 10475637

約数列:

[1, 3, 13, 39, 41, 123, 169, 507, 533, 1049, 1599, 3147, 6929, 13637, 20787, 40911, 43009, 129027, 177281, 531843, 559117, 1677351, 7268521, 21805563]

約数ペア:

[(1, 21805563), (3, 7268521), (13, 1677351), (39, 559117), (41, 531843), (123, 177281), (169, 129027), (507, 43009), (533, 40911), (1049, 20787), (1599, 13637), (3147, 6929)]