399221426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{118043}}^1$

素因数の和:118153

約数の個数: 16

約数和(自身を含む): 637437600

約数和(自身を除く): 238216174

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 118043, 236086, 2242817, 4485634, 10505827, 21011654, 199610713, 399221426]

約数ペア:

[(1, 399221426), (2, 199610713), (19, 21011654), (38, 10505827), (89, 4485634), (178, 2242817), (1691, 236086), (3382, 118043)]