21258601

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1451}}^1$

素因数の和:1501

約数の個数: 24

約数和(自身を含む): 27808704

約数和(自身を除く): 6550103

約数列:

[1, 7, 13, 23, 49, 91, 161, 299, 637, 1127, 1451, 2093, 10157, 14651, 18863, 33373, 71099, 132041, 233611, 433849, 924287, 1635277, 3036943, 21258601]

約数ペア:

[(1, 21258601), (7, 3036943), (13, 1635277), (23, 924287), (49, 433849), (91, 233611), (161, 132041), (299, 71099), (637, 33373), (1127, 18863), (1451, 14651), (2093, 10157)]