21235695

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8377}}^1$

素因数の和:8411

約数の個数: 24

約数和(自身を含む): 36796176

約数和(自身を除く): 15560481

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8377, 25131, 41885, 108901, 125655, 326703, 544505, 1415713, 1633515, 4247139, 7078565, 21235695]

約数ペア:

[(1, 21235695), (3, 7078565), (5, 4247139), (13, 1633515), (15, 1415713), (39, 544505), (65, 326703), (169, 125655), (195, 108901), (507, 41885), (845, 25131), (2535, 8377)]