21436667

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{827}}^1$

素因数の和:887

約数の個数: 18

約数和(自身を含む): 26099388

約数和(自身を除く): 4662721

約数列:

[1, 7, 23, 49, 161, 529, 827, 1127, 3703, 5789, 19021, 25921, 40523, 133147, 437483, 932029, 3062381, 21436667]

約数ペア:

[(1, 21436667), (7, 3062381), (23, 932029), (49, 437483), (161, 133147), (529, 40523), (827, 25921), (1127, 19021), (3703, 5789)]