21402238

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{6803}}^1$

素因数の和:6840

約数の個数: 24

約数和(自身を含む): 38007144

約数和(自身を除く): 16604906

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 242, 286, 1573, 3146, 6803, 13606, 74833, 88439, 149666, 176878, 823163, 972829, 1646326, 1945658, 10701119, 21402238]

約数ペア:

[(1, 21402238), (2, 10701119), (11, 1945658), (13, 1646326), (22, 972829), (26, 823163), (121, 176878), (143, 149666), (242, 88439), (286, 74833), (1573, 13606), (3146, 6803)]