21999124

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{19163}}^1$

素因数の和:19215

約数の個数: 24

約数和(自身を含む): 45073728

約数和(自身を除く): 23074604

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 19163, 38326, 76652, 134141, 268282, 536564, 785683, 1571366, 3142732, 5499781, 10999562, 21999124]

約数ペア:

[(1, 21999124), (2, 10999562), (4, 5499781), (7, 3142732), (14, 1571366), (28, 785683), (41, 536564), (82, 268282), (164, 134141), (287, 76652), (574, 38326), (1148, 19163)]