638615742

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{252817}}^1$

素因数の和:253243

約数の個数: 16

約数和(自身を含む): 1280270352

約数和(自身を除く): 641654610

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 252817, 505634, 758451, 1516902, 106435957, 212871914, 319307871, 638615742]

約数ペア:

[(1, 638615742), (2, 319307871), (3, 212871914), (6, 106435957), (421, 1516902), (842, 758451), (1263, 505634), (2526, 252817)]