21315266

素因数分解:

$2^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{4241}}^1$

素因数の和:4609

約数の個数: 16

約数和(自身を含む): 36650880

約数和(自身を除く): 15335614

約数列:

[1, 2, 7, 14, 359, 718, 2513, 4241, 5026, 8482, 29687, 59374, 1522519, 3045038, 10657633, 21315266]

約数ペア:

[(1, 21315266), (2, 10657633), (7, 3045038), (14, 1522519), (359, 59374), (718, 29687), (2513, 8482), (4241, 5026)]