21210858

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^2\times {\mathrm{701}}^1$

素因数の和:791

約数の個数: 36

約数和(自身を含む): 47172294

約数和(自身を除く): 25961436

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 701, 738, 1402, 1681, 2103, 3362, 4206, 5043, 6309, 10086, 12618, 15129, 28741, 30258, 57482, 86223, 172446, 258669, 517338, 1178381, 2356762, 3535143, 7070286, 10605429, 21210858]

約数ペア:

[(1, 21210858), (2, 10605429), (3, 7070286), (6, 3535143), (9, 2356762), (18, 1178381), (41, 517338), (82, 258669), (123, 172446), (246, 86223), (369, 57482), (701, 30258), (738, 28741), (1402, 15129), (1681, 12618), (2103, 10086), (3362, 6309), (4206, 5043)]