21348380

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{7069}}^1$

素因数の和:7229

約数の個数: 24

約数和(自身を含む): 45134880

約数和(自身を除く): 23786500

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 7069, 14138, 28276, 35345, 70690, 141380, 1067419, 2134838, 4269676, 5337095, 10674190, 21348380]

約数ペア:

[(1, 21348380), (2, 10674190), (4, 5337095), (5, 4269676), (10, 2134838), (20, 1067419), (151, 141380), (302, 70690), (604, 35345), (755, 28276), (1510, 14138), (3020, 7069)]