21735940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15307}}^1$

素因数の和:15387

約数の個数: 24

約数和(自身を含む): 46291392

約数和(自身を除く): 24555452

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 15307, 30614, 61228, 76535, 153070, 306140, 1086797, 2173594, 4347188, 5433985, 10867970, 21735940]

約数ペア:

[(1, 21735940), (2, 10867970), (4, 5433985), (5, 4347188), (10, 2173594), (20, 1086797), (71, 306140), (142, 153070), (284, 76535), (355, 61228), (710, 30614), (1420, 15307)]