156907947

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{56179}}^1$

素因数の和:56215

約数の個数: 24

約数和(自身を含む): 256180800

約数和(自身を除く): 99272853

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 56179, 168537, 393253, 1067401, 1179759, 2752771, 3202203, 7471807, 8258313, 22415421, 52302649, 156907947]

約数ペア:

[(1, 156907947), (3, 52302649), (7, 22415421), (19, 8258313), (21, 7471807), (49, 3202203), (57, 2752771), (133, 1179759), (147, 1067401), (399, 393253), (931, 168537), (2793, 56179)]