20162975721

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1\times {\mathrm{5413}}^1$

素因数の和:7505

約数の個数: 32

約数和(自身を含む): 31091086080

約数和(自身を除く): 10928110359

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 1993, 5413, 5979, 13951, 16239, 37891, 41853, 113673, 177377, 481757, 532131, 1241639, 1445271, 3372299, 3724917, 10116897, 10788109, 32364327, 75516763, 226550289, 960141701, 2880425103, 6720991907, 20162975721]

約数ペア:

[(1, 20162975721), (3, 6720991907), (7, 2880425103), (21, 960141701), (89, 226550289), (267, 75516763), (623, 32364327), (1869, 10788109), (1993, 10116897), (5413, 3724917), (5979, 3372299), (13951, 1445271), (16239, 1241639), (37891, 532131), (41853, 481757), (113673, 177377)]