21139929213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{1277}}^1\times {\mathrm{424471}}^1$

素因数の和:425764

約数の個数: 16

約数和(自身を含む): 30378612096

約数和(自身を除く): 9238682883

約数列:

[1, 3, 13, 39, 1277, 3831, 16601, 49803, 424471, 1273413, 5518123, 16554369, 542049467, 1626148401, 7046643071, 21139929213]

約数ペア:

[(1, 21139929213), (3, 7046643071), (13, 1626148401), (39, 542049467), (1277, 16554369), (3831, 5518123), (16601, 1273413), (49803, 424471)]