21181654

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5861}}^1$

素因数の和:6015

約数の個数: 16

約数和(自身を含む): 34468560

約数和(自身を除く): 13286906

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5861, 11722, 76193, 152386, 814679, 1629358, 10590827, 21181654]

約数ペア:

[(1, 21181654), (2, 10590827), (13, 1629358), (26, 814679), (139, 152386), (278, 76193), (1807, 11722), (3614, 5861)]