21815324

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 17103556

約数列:

[1, 2, 4, 89, 178, 233, 263, 356, 466, 526, 932, 1052, 20737, 23407, 41474, 46814, 61279, 82948, 93628, 122558, 245116, 5453831, 10907662, 21815324]

約数ペア:

[(1, 21815324), (2, 10907662), (4, 5453831), (89, 245116), (178, 122558), (233, 93628), (263, 82948), (356, 61279), (466, 46814), (526, 41474), (932, 23407), (1052, 20737)]