21313935

素因数分解:

$3^4\times 5^1\times {\mathrm{52627}}^1$

素因数の和:52644

約数の個数: 20

約数和(自身を含む): 38207928

約数和(自身を除く): 16893993

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 52627, 157881, 263135, 473643, 789405, 1420929, 2368215, 4262787, 7104645, 21313935]

約数ペア:

[(1, 21313935), (3, 7104645), (5, 4262787), (9, 2368215), (15, 1420929), (27, 789405), (45, 473643), (81, 263135), (135, 157881), (405, 52627)]