21175750

素因数分解:

$2^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{1193}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 40233024

約数和(自身を除く): 19057274

約数列:

[1, 2, 5, 10, 25, 50, 71, 125, 142, 250, 355, 710, 1193, 1775, 2386, 3550, 5965, 8875, 11930, 17750, 29825, 59650, 84703, 149125, 169406, 298250, 423515, 847030, 2117575, 4235150, 10587875, 21175750]

約数ペア:

[(1, 21175750), (2, 10587875), (5, 4235150), (10, 2117575), (25, 847030), (50, 423515), (71, 298250), (125, 169406), (142, 149125), (250, 84703), (355, 59650), (710, 29825), (1193, 17750), (1775, 11930), (2386, 8875), (3550, 5965)]