21860415

素因数分解:

$3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1433}}^1$

素因数の和:1560

約数の個数: 32

約数和(自身を含む): 39234240

約数和(自身を除く): 17373825

約数列:

[1, 3, 5, 9, 15, 27, 45, 113, 135, 339, 565, 1017, 1433, 1695, 3051, 4299, 5085, 7165, 12897, 15255, 21495, 38691, 64485, 161929, 193455, 485787, 809645, 1457361, 2428935, 4372083, 7286805, 21860415]

約数ペア:

[(1, 21860415), (3, 7286805), (5, 4372083), (9, 2428935), (15, 1457361), (27, 809645), (45, 485787), (113, 193455), (135, 161929), (339, 64485), (565, 38691), (1017, 21495), (1433, 15255), (1695, 12897), (3051, 7165), (4299, 5085)]