21495453

素因数分解:

$3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{3229}}^1$

素因数の和:3556

約数の個数: 16

約数和(自身を含む): 32868480

約数和(自身を除く): 11373027

約数列:

[1, 3, 7, 21, 317, 951, 2219, 3229, 6657, 9687, 22603, 67809, 1023593, 3070779, 7165151, 21495453]

約数ペア:

[(1, 21495453), (3, 7165151), (7, 3070779), (21, 1023593), (317, 67809), (951, 22603), (2219, 9687), (3229, 6657)]