31981978

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{120233}}^1$

素因数の和:120261

約数の個数: 16

約数和(自身を含む): 57712320

約数和(自身を除く): 25730342

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 120233, 240466, 841631, 1683262, 2284427, 4568854, 15990989, 31981978]

約数ペア:

[(1, 31981978), (2, 15990989), (7, 4568854), (14, 2284427), (19, 1683262), (38, 841631), (133, 240466), (266, 120233)]