21000929008

素因数分解:

$2^4\times {\mathrm{27673}}^1\times {\mathrm{47431}}^1$

素因数の和:75112

約数の個数: 20

約数和(自身を含む): 40691628208

約数和(自身を除く): 19690699200

約数列:

[1, 2, 4, 8, 16, 27673, 47431, 55346, 94862, 110692, 189724, 221384, 379448, 442768, 758896, 1312558063, 2625116126, 5250232252, 10500464504, 21000929008]

約数ペア:

[(1, 21000929008), (2, 10500464504), (4, 5250232252), (8, 2625116126), (16, 1312558063), (27673, 758896), (47431, 442768), (55346, 379448), (94862, 221384), (110692, 189724)]