21821553

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4549}}^1$

素因数の和:4609

約数の個数: 24

約数和(自身を含む): 34780200

約数和(自身を除く): 12958647

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4549, 4797, 13647, 40941, 59137, 177411, 186509, 532233, 559527, 1678581, 2424617, 7273851, 21821553]

約数ペア:

[(1, 21821553), (3, 7273851), (9, 2424617), (13, 1678581), (39, 559527), (41, 532233), (117, 186509), (123, 177411), (369, 59137), (533, 40941), (1599, 13647), (4549, 4797)]