21921231

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{727}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 32206720

約数和(自身を除く): 10285489

約数列:

[1, 3, 19, 23, 57, 69, 437, 529, 727, 1311, 1587, 2181, 10051, 13813, 16721, 30153, 41439, 50163, 317699, 384583, 953097, 1153749, 7307077, 21921231]

約数ペア:

[(1, 21921231), (3, 7307077), (19, 1153749), (23, 953097), (57, 384583), (69, 317699), (437, 50163), (529, 41439), (727, 30153), (1311, 16721), (1587, 13813), (2181, 10051)]