21860995

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 29145312

約数和(自身を除く): 7284317

約数列:

[1, 5, 13, 41, 65, 169, 205, 533, 631, 845, 2665, 3155, 6929, 8203, 25871, 34645, 41015, 106639, 129355, 336323, 533195, 1681615, 4372199, 21860995]

約数ペア:

[(1, 21860995), (5, 4372199), (13, 1681615), (41, 533195), (65, 336323), (169, 129355), (205, 106639), (533, 41015), (631, 34645), (845, 25871), (2665, 8203), (3155, 6929)]