21975915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8669}}^1$

素因数の和:8703

約数の個数: 24

約数和(自身を含む): 38078640

約数和(自身を除く): 16102725

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8669, 26007, 43345, 112697, 130035, 338091, 563485, 1465061, 1690455, 4395183, 7325305, 21975915]

約数ペア:

[(1, 21975915), (3, 7325305), (5, 4395183), (13, 1690455), (15, 1465061), (39, 563485), (65, 338091), (169, 130035), (195, 112697), (507, 43345), (845, 26007), (2535, 8669)]