138804561

素因数分解:

$3^2\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{2137}}^1$

素因数の和:3181

約数の個数: 24

約数和(自身を含む): 229467264

約数和(自身を除く): 90662703

約数列:

[1, 3, 7, 9, 21, 63, 1031, 2137, 3093, 6411, 7217, 9279, 14959, 19233, 21651, 44877, 64953, 134631, 2203247, 6609741, 15422729, 19829223, 46268187, 138804561]

約数ペア:

[(1, 138804561), (3, 46268187), (7, 19829223), (9, 15422729), (21, 6609741), (63, 2203247), (1031, 134631), (2137, 64953), (3093, 44877), (6411, 21651), (7217, 19233), (9279, 14959)]