19876749

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{839}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 7339251

約数列:

[1, 3, 53, 149, 159, 447, 839, 2517, 7897, 23691, 44467, 125011, 133401, 375033, 6625583, 19876749]

約数ペア:

[(1, 19876749), (3, 6625583), (53, 375033), (149, 133401), (159, 125011), (447, 44467), (839, 23691), (2517, 7897)]