20789715

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22721}}^1$

素因数の和:22790

約数の個数: 16

約数和(自身を含む): 33810336

約数和(自身を除く): 13020621

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 22721, 68163, 113605, 340815, 1385981, 4157943, 6929905, 20789715]

約数ペア:

[(1, 20789715), (3, 6929905), (5, 4157943), (15, 1385981), (61, 340815), (183, 113605), (305, 68163), (915, 22721)]