21753993

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{4831}}^1$

素因数の和:4932

約数の個数: 16

約数和(自身を含む): 30924800

約数和(自身を除く): 9170807

約数列:

[1, 3, 19, 57, 79, 237, 1501, 4503, 4831, 14493, 91789, 275367, 381649, 1144947, 7251331, 21753993]

約数ペア:

[(1, 21753993), (3, 7251331), (19, 1144947), (57, 381649), (79, 275367), (237, 91789), (1501, 14493), (4503, 4831)]