21279715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9739}}^1$

素因数の和:9786

約数の個数: 16

約数和(自身を含む): 28051200

約数和(自身を除く): 6771485

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 9739, 48695, 185041, 223997, 925205, 1119985, 4255943, 21279715]

約数ペア:

[(1, 21279715), (5, 4255943), (19, 1119985), (23, 925205), (95, 223997), (115, 185041), (437, 48695), (2185, 9739)]