21599809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{569}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 7948991

約数列:

[1, 7, 11, 17, 29, 77, 119, 187, 203, 319, 493, 569, 1309, 2233, 3451, 3983, 5423, 6259, 9673, 16501, 37961, 43813, 67711, 106403, 115507, 181511, 280517, 744821, 1270577, 1963619, 3085687, 21599809]

約数ペア:

[(1, 21599809), (7, 3085687), (11, 1963619), (17, 1270577), (29, 744821), (77, 280517), (119, 181511), (187, 115507), (203, 106403), (319, 67711), (493, 43813), (569, 37961), (1309, 16501), (2233, 9673), (3451, 6259), (3983, 5423)]