20157927

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 27646080

約数和(自身を除く): 7488153

約数列:

[1, 3, 43, 129, 307, 509, 921, 1527, 13201, 21887, 39603, 65661, 156263, 468789, 6719309, 20157927]

約数ペア:

[(1, 20157927), (3, 6719309), (43, 468789), (129, 156263), (307, 65661), (509, 39603), (921, 21887), (1527, 13201)]