18779931

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4933}}^1$

素因数の和:4992

約数の個数: 20

約数和(自身を含む): 28656672

約数和(自身を除く): 9876741

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4933, 14799, 44397, 133191, 231851, 399573, 695553, 2086659, 6259977, 18779931]

約数ペア:

[(1, 18779931), (3, 6259977), (9, 2086659), (27, 695553), (47, 399573), (81, 231851), (141, 133191), (423, 44397), (1269, 14799), (3807, 4933)]