21201800

素因数分解:

$2^3\times 5^2\times {\mathrm{227}}^1\times {\mathrm{467}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 49617360

約数和(自身を除く): 28415560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 227, 454, 467, 908, 934, 1135, 1816, 1868, 2270, 2335, 3736, 4540, 4670, 5675, 9080, 9340, 11350, 11675, 18680, 22700, 23350, 45400, 46700, 93400, 106009, 212018, 424036, 530045, 848072, 1060090, 2120180, 2650225, 4240360, 5300450, 10600900, 21201800]

約数ペア:

[(1, 21201800), (2, 10600900), (4, 5300450), (5, 4240360), (8, 2650225), (10, 2120180), (20, 1060090), (25, 848072), (40, 530045), (50, 424036), (100, 212018), (200, 106009), (227, 93400), (454, 46700), (467, 45400), (908, 23350), (934, 22700), (1135, 18680), (1816, 11675), (1868, 11350), (2270, 9340), (2335, 9080), (3736, 5675), (4540, 4670)]