21910539

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2551}}^1$

素因数の和:2970

約数の個数: 16

約数和(自身を含む): 33482240

約数和(自身を除く): 11571701

約数列:

[1, 3, 7, 21, 409, 1227, 2551, 2863, 7653, 8589, 17857, 53571, 1043359, 3130077, 7303513, 21910539]

約数ペア:

[(1, 21910539), (3, 7303513), (7, 3130077), (21, 1043359), (409, 53571), (1227, 17857), (2551, 8589), (2863, 7653)]