19938494

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{2381}}^1$

素因数の和:2515

約数の個数: 16

約数和(自身を含む): 30870720

約数和(自身を除く): 10932226

約数列:

[1, 2, 53, 79, 106, 158, 2381, 4187, 4762, 8374, 126193, 188099, 252386, 376198, 9969247, 19938494]

約数ペア:

[(1, 19938494), (2, 9969247), (53, 376198), (79, 252386), (106, 188099), (158, 126193), (2381, 8374), (4187, 4762)]