21609692

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{2459}}^1$

素因数の和:2502

約数の個数: 24

約数和(自身を含む): 40983600

約数和(自身を除く): 19373908

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 2197, 2459, 4394, 4918, 8788, 9836, 31967, 63934, 127868, 415571, 831142, 1662284, 5402423, 10804846, 21609692]

約数ペア:

[(1, 21609692), (2, 10804846), (4, 5402423), (13, 1662284), (26, 831142), (52, 415571), (169, 127868), (338, 63934), (676, 31967), (2197, 9836), (2459, 8788), (4394, 4918)]