21024157

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1993}}^1$

素因数の和:2148

約数の個数: 16

約数和(自身を含む): 26416512

約数和(自身を除く): 5392355

約数列:

[1, 7, 11, 77, 137, 959, 1507, 1993, 10549, 13951, 21923, 153461, 273041, 1911287, 3003451, 21024157]

約数ペア:

[(1, 21024157), (7, 3003451), (11, 1911287), (77, 273041), (137, 153461), (959, 21923), (1507, 13951), (1993, 10549)]