21735231

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{569}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 13723329

約数列:

[1, 3, 7, 17, 21, 51, 107, 119, 321, 357, 569, 749, 1707, 1819, 2247, 3983, 5457, 9673, 11949, 12733, 29019, 38199, 60883, 67711, 182649, 203133, 426181, 1035011, 1278543, 3105033, 7245077, 21735231]

約数ペア:

[(1, 21735231), (3, 7245077), (7, 3105033), (17, 1278543), (21, 1035011), (51, 426181), (107, 203133), (119, 182649), (321, 67711), (357, 60883), (569, 38199), (749, 29019), (1707, 12733), (1819, 11949), (2247, 9673), (3983, 5457)]