217804509

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{827}}^1\times {\mathrm{2251}}^1$

素因数の和:3097

約数の個数: 24

約数和(自身を含む): 339367392

約数和(自身を除く): 121562883

約数列:

[1, 3, 9, 13, 39, 117, 827, 2251, 2481, 6753, 7443, 10751, 20259, 29263, 32253, 87789, 96759, 263367, 1861577, 5584731, 16754193, 24200501, 72601503, 217804509]

約数ペア:

[(1, 217804509), (3, 72601503), (9, 24200501), (13, 16754193), (39, 5584731), (117, 1861577), (827, 263367), (2251, 96759), (2481, 87789), (6753, 32253), (7443, 29263), (10751, 20259)]