20456799993

素因数分解:

$3^3\times 7^1\times {\mathrm{13099}}^1\times {\mathrm{8263}}^1$

素因数の和:21378

約数の個数: 32

約数和(自身を含む): 34642688000

約数和(自身を除く): 14185888007

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 8263, 13099, 24789, 39297, 57841, 74367, 91693, 117891, 173523, 223101, 275079, 353673, 520569, 825237, 1561707, 2475711, 108237037, 324711111, 757659259, 974133333, 2272977777, 2922399999, 6818933331, 20456799993]

約数ペア:

[(1, 20456799993), (3, 6818933331), (7, 2922399999), (9, 2272977777), (21, 974133333), (27, 757659259), (63, 324711111), (189, 108237037), (8263, 2475711), (13099, 1561707), (24789, 825237), (39297, 520569), (57841, 353673), (74367, 275079), (91693, 223101), (117891, 173523)]