21898323

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 12316077

約数列:

[1, 3, 9, 23, 27, 69, 179, 197, 207, 537, 591, 621, 1611, 1773, 4117, 4531, 4833, 5319, 12351, 13593, 35263, 37053, 40779, 105789, 111159, 122337, 317367, 811049, 952101, 2433147, 7299441, 21898323]

約数ペア:

[(1, 21898323), (3, 7299441), (9, 2433147), (23, 952101), (27, 811049), (69, 317367), (179, 122337), (197, 111159), (207, 105789), (537, 40779), (591, 37053), (621, 35263), (1611, 13593), (1773, 12351), (4117, 5319), (4531, 4833)]