1999641

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 3166464

約数和(自身を除く): 1166823

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 223, 427, 669, 1281, 1561, 2989, 4683, 8967, 10927, 13603, 32781, 40809, 95221, 285663, 666547, 1999641]

約数ペア:

[(1, 1999641), (3, 666547), (7, 285663), (21, 95221), (49, 40809), (61, 32781), (147, 13603), (183, 10927), (223, 8967), (427, 4683), (669, 2989), (1281, 1561)]