21927051

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 12218229

約数列:

[1, 3, 9, 27, 37, 47, 111, 141, 333, 423, 467, 999, 1269, 1401, 1739, 4203, 5217, 12609, 15651, 17279, 21949, 46953, 51837, 65847, 155511, 197541, 466533, 592623, 812113, 2436339, 7309017, 21927051]

約数ペア:

[(1, 21927051), (3, 7309017), (9, 2436339), (27, 812113), (37, 592623), (47, 466533), (111, 197541), (141, 155511), (333, 65847), (423, 51837), (467, 46953), (999, 21949), (1269, 17279), (1401, 15651), (1739, 12609), (4203, 5217)]