18928049

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 22246272

約数和(自身を除く): 3318223

約数列:

[1, 7, 53, 163, 313, 371, 1141, 2191, 8639, 16589, 51019, 60473, 116123, 357133, 2704007, 18928049]

約数ペア:

[(1, 18928049), (7, 2704007), (53, 357133), (163, 116123), (313, 60473), (371, 51019), (1141, 16589), (2191, 8639)]