20854621899

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1\times {\mathrm{77521}}^1$

素因数の和:78019

約数の個数: 24

約数和(自身を含む): 30620569824

約数和(自身を除く): 9765947925

約数列:

[1, 3, 9, 71, 213, 421, 639, 1263, 3789, 29891, 77521, 89673, 232563, 269019, 697689, 5503991, 16511973, 32636341, 49535919, 97909023, 293727069, 2317180211, 6951540633, 20854621899]

約数ペア:

[(1, 20854621899), (3, 6951540633), (9, 2317180211), (71, 293727069), (213, 97909023), (421, 49535919), (639, 32636341), (1263, 16511973), (3789, 5503991), (29891, 697689), (77521, 269019), (89673, 232563)]