217878843

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{114013}}^1$

素因数の和:114043

約数の個数: 24

約数和(自身を含む): 363932688

約数和(自身を除く): 146053845

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 114013, 342039, 798091, 1482169, 2394273, 4446507, 5586637, 10375183, 16759911, 31125549, 72626281, 217878843]

約数ペア:

[(1, 217878843), (3, 72626281), (7, 31125549), (13, 16759911), (21, 10375183), (39, 5586637), (49, 4446507), (91, 2394273), (147, 1482169), (273, 798091), (637, 342039), (1911, 114013)]