21779643

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 11052357

約数列:

[1, 3, 19, 23, 37, 57, 69, 111, 437, 449, 703, 851, 1311, 1347, 2109, 2553, 8531, 10327, 16169, 16613, 25593, 30981, 48507, 49839, 196213, 315647, 382099, 588639, 946941, 1146297, 7259881, 21779643]

約数ペア:

[(1, 21779643), (3, 7259881), (19, 1146297), (23, 946941), (37, 588639), (57, 382099), (69, 315647), (111, 196213), (437, 49839), (449, 48507), (703, 30981), (851, 25593), (1311, 16613), (1347, 16169), (2109, 10327), (2553, 8531)]