21915179

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{463}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 25880064

約数和(自身を除く): 3964885

約数列:

[1, 11, 13, 143, 331, 463, 3641, 4303, 5093, 6019, 47333, 66209, 153253, 1685783, 1992289, 21915179]

約数ペア:

[(1, 21915179), (11, 1992289), (13, 1685783), (143, 153253), (331, 66209), (463, 47333), (3641, 6019), (4303, 5093)]