19871644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20113}}^1$

素因数の和:20149

約数の個数: 24

約数和(自身を含む): 39423440

約数和(自身を除く): 19551796

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20113, 40226, 80452, 261469, 382147, 522938, 764294, 1045876, 1528588, 4967911, 9935822, 19871644]

約数ペア:

[(1, 19871644), (2, 9935822), (4, 4967911), (13, 1528588), (19, 1045876), (26, 764294), (38, 522938), (52, 382147), (76, 261469), (247, 80452), (494, 40226), (988, 20113)]