21860802817

素因数分解:

$7^3\times {\mathrm{79}}^1\times {\mathrm{806761}}^1$

素因数の和:806861

約数の個数: 16

約数和(自身を含む): 25816384000

約数和(自身を除く): 3955581183

約数列:

[1, 7, 49, 79, 343, 553, 3871, 27097, 806761, 5647327, 39531289, 63734119, 276719023, 446138833, 3122971831, 21860802817]

約数ペア:

[(1, 21860802817), (7, 3122971831), (49, 446138833), (79, 276719023), (343, 63734119), (553, 39531289), (3871, 5647327), (27097, 806761)]