21374331

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13781}}^1$

素因数の和:13842

約数の個数: 16

約数和(自身を含む): 31753728

約数和(自身を除く): 10379397

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13781, 41343, 151591, 454773, 647707, 1943121, 7124777, 21374331]

約数ペア:

[(1, 21374331), (3, 7124777), (11, 1943121), (33, 647707), (47, 454773), (141, 151591), (517, 41343), (1551, 13781)]