21000313340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{567883}}^1$

素因数の和:567978

約数の個数: 36

約数和(自身を含む): 45150185304

約数和(自身を除く): 24149871964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1849, 3698, 7396, 9245, 18490, 36980, 567883, 1135766, 2271532, 2839415, 5678830, 11357660, 24418969, 48837938, 97675876, 122094845, 244189690, 488379380, 1050015667, 2100031334, 4200062668, 5250078335, 10500156670, 21000313340]

約数ペア:

[(1, 21000313340), (2, 10500156670), (4, 5250078335), (5, 4200062668), (10, 2100031334), (20, 1050015667), (43, 488379380), (86, 244189690), (172, 122094845), (215, 97675876), (430, 48837938), (860, 24418969), (1849, 11357660), (3698, 5678830), (7396, 2839415), (9245, 2271532), (18490, 1135766), (36980, 567883)]