19878862

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{3851}}^1$

素因数の和:3971

約数の個数: 16

約数和(自身を含む): 31201200

約数和(自身を除く): 11322338

約数列:

[1, 2, 29, 58, 89, 178, 2581, 3851, 5162, 7702, 111679, 223358, 342739, 685478, 9939431, 19878862]

約数ペア:

[(1, 19878862), (2, 9939431), (29, 685478), (58, 342739), (89, 223358), (178, 111679), (2581, 7702), (3851, 5162)]