18704637

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6317}}^1$

素因数の和:6377

約数の個数: 24

約数和(自身を含む): 31539456

約数和(自身を除く): 12834819

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6317, 18951, 44219, 56853, 132657, 296899, 397971, 890697, 2078293, 2672091, 6234879, 18704637]

約数ペア:

[(1, 18704637), (3, 6234879), (7, 2672091), (9, 2078293), (21, 890697), (47, 397971), (63, 296899), (141, 132657), (329, 56853), (423, 44219), (987, 18951), (2961, 6317)]