20932359

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1087}}^1$

素因数の和:1235

約数の個数: 24

約数和(自身を含む): 32744448

約数和(自身を除く): 11812089

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1087, 2751, 3261, 6419, 7609, 19257, 22827, 53263, 142397, 159789, 427191, 996779, 2990337, 6977453, 20932359]

約数ペア:

[(1, 20932359), (3, 6977453), (7, 2990337), (21, 996779), (49, 427191), (131, 159789), (147, 142397), (393, 53263), (917, 22827), (1087, 19257), (2751, 7609), (3261, 6419)]