21329091

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4079}}^1$

素因数の和:4175

約数の個数: 24

約数和(自身を含む): 35642880

約数和(自身を除く): 14313789

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 4079, 5229, 12237, 28553, 36711, 85659, 256977, 338557, 1015671, 2369899, 3047013, 7109697, 21329091]

約数ペア:

[(1, 21329091), (3, 7109697), (7, 3047013), (9, 2369899), (21, 1015671), (63, 338557), (83, 256977), (249, 85659), (581, 36711), (747, 28553), (1743, 12237), (4079, 5229)]