21374415

素因数分解:

$3^3\times 5^1\times {\mathrm{158329}}^1$

素因数の和:158343

約数の個数: 16

約数和(自身を含む): 37999200

約数和(自身を除く): 16624785

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 158329, 474987, 791645, 1424961, 2374935, 4274883, 7124805, 21374415]

約数ペア:

[(1, 21374415), (3, 7124805), (5, 4274883), (9, 2374935), (15, 1424961), (27, 791645), (45, 474987), (135, 158329)]