31222947

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1640

約数の個数: 32

約数和(自身を含む): 51136000

約数和(自身を除く): 19913053

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1597, 2793, 4791, 6517, 11179, 19551, 30343, 33537, 78253, 91029, 212401, 234759, 547771, 637203, 1486807, 1643313, 4460421, 10407649, 31222947]

約数ペア:

[(1, 31222947), (3, 10407649), (7, 4460421), (19, 1643313), (21, 1486807), (49, 637203), (57, 547771), (133, 234759), (147, 212401), (343, 91029), (399, 78253), (931, 33537), (1029, 30343), (1597, 19551), (2793, 11179), (4791, 6517)]