21974421

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61553}}^1$

素因数の和:61580

約数の個数: 16

約数和(自身を含む): 35455104

約数和(自身を除く): 13480683

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 61553, 184659, 430871, 1046401, 1292613, 3139203, 7324807, 21974421]

約数ペア:

[(1, 21974421), (3, 7324807), (7, 3139203), (17, 1292613), (21, 1046401), (51, 430871), (119, 184659), (357, 61553)]