21045748

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3307}}^1$

素因数の和:3391

約数の個数: 24

約数和(自身を含む): 38716832

約数和(自身を除く): 17671084

約数列:

[1, 2, 4, 37, 43, 74, 86, 148, 172, 1591, 3182, 3307, 6364, 6614, 13228, 122359, 142201, 244718, 284402, 489436, 568804, 5261437, 10522874, 21045748]

約数ペア:

[(1, 21045748), (2, 10522874), (4, 5261437), (37, 568804), (43, 489436), (74, 284402), (86, 244718), (148, 142201), (172, 122359), (1591, 13228), (3182, 6614), (3307, 6364)]