17721980

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{3803}}^1$

素因数の和:4045

約数の個数: 24

約数和(自身を含む): 37385712

約数和(自身を除く): 19663732

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 3803, 4660, 7606, 15212, 19015, 38030, 76060, 886099, 1772198, 3544396, 4430495, 8860990, 17721980]

約数ペア:

[(1, 17721980), (2, 8860990), (4, 4430495), (5, 3544396), (10, 1772198), (20, 886099), (233, 76060), (466, 38030), (932, 19015), (1165, 15212), (2330, 7606), (3803, 4660)]