12390819

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{431}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 19450368

約数和(自身を除く): 7059549

約数列:

[1, 3, 7, 21, 37, 111, 259, 431, 777, 1293, 1369, 3017, 4107, 9051, 9583, 15947, 28749, 47841, 111629, 334887, 590039, 1770117, 4130273, 12390819]

約数ペア:

[(1, 12390819), (3, 4130273), (7, 1770117), (21, 590039), (37, 334887), (111, 111629), (259, 47841), (431, 28749), (777, 15947), (1293, 9583), (1369, 9051), (3017, 4107)]