21646365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8539}}^1$

素因数の和:8573

約数の個数: 24

約数和(自身を含む): 37507680

約数和(自身を除く): 15861315

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8539, 25617, 42695, 111007, 128085, 333021, 555035, 1443091, 1665105, 4329273, 7215455, 21646365]

約数ペア:

[(1, 21646365), (3, 7215455), (5, 4329273), (13, 1665105), (15, 1443091), (39, 555035), (65, 333021), (169, 128085), (195, 111007), (507, 42695), (845, 25617), (2535, 8539)]