21003924

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 50577408

約数和(自身を除く): 29573484

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 141, 167, 188, 223, 282, 334, 446, 501, 564, 668, 669, 892, 1002, 1338, 2004, 2676, 7849, 10481, 15698, 20962, 23547, 31396, 31443, 37241, 41924, 47094, 62886, 74482, 94188, 111723, 125772, 148964, 223446, 446892, 1750327, 3500654, 5250981, 7001308, 10501962, 21003924]

約数ペア:

[(1, 21003924), (2, 10501962), (3, 7001308), (4, 5250981), (6, 3500654), (12, 1750327), (47, 446892), (94, 223446), (141, 148964), (167, 125772), (188, 111723), (223, 94188), (282, 74482), (334, 62886), (446, 47094), (501, 41924), (564, 37241), (668, 31443), (669, 31396), (892, 23547), (1002, 20962), (1338, 15698), (2004, 10481), (2676, 7849)]