21034215

素因数分解:

$3^3\times 5^1\times {\mathrm{155809}}^1$

素因数の和:155823

約数の個数: 16

約数和(自身を含む): 37394400

約数和(自身を除く): 16360185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155809, 467427, 779045, 1402281, 2337135, 4206843, 7011405, 21034215]

約数ペア:

[(1, 21034215), (3, 7011405), (5, 4206843), (9, 2337135), (15, 1402281), (27, 779045), (45, 467427), (135, 155809)]