20951547

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2683}}^1$

素因数の和:2842

約数の個数: 16

約数和(自身を含む): 29631360

約数和(自身を除く): 8679813

約数列:

[1, 3, 19, 57, 137, 411, 2603, 2683, 7809, 8049, 50977, 152931, 367571, 1102713, 6983849, 20951547]

約数ペア:

[(1, 20951547), (3, 6983849), (19, 1102713), (57, 367571), (137, 152931), (411, 50977), (2603, 8049), (2683, 7809)]