20784813988

素因数分解:

$2^2\times {\mathrm{167}}^1\times {\mathrm{443}}^1\times {\mathrm{70237}}^1$

素因数の和:70851

約数の個数: 24

約数和(自身を含む): 36674350272

約数和(自身を除く): 15889536284

約数列:

[1, 2, 4, 167, 334, 443, 668, 886, 1772, 70237, 73981, 140474, 147962, 280948, 295924, 11729579, 23459158, 31114991, 46918316, 62229982, 124459964, 5196203497, 10392406994, 20784813988]

約数ペア:

[(1, 20784813988), (2, 10392406994), (4, 5196203497), (167, 124459964), (334, 62229982), (443, 46918316), (668, 31114991), (886, 23459158), (1772, 11729579), (70237, 295924), (73981, 280948), (140474, 147962)]