20861542

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15139}}^1$

素因数の和:15207

約数の個数: 16

約数和(自身を含む): 34337520

約数和(自身を除く): 13475978

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15139, 30278, 196807, 393614, 802367, 1604734, 10430771, 20861542]

約数ペア:

[(1, 20861542), (2, 10430771), (13, 1604734), (26, 802367), (53, 393614), (106, 196807), (689, 30278), (1378, 15139)]