21364215

素因数分解:

$3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4493}}^1$

素因数の和:4818

約数の個数: 16

約数和(自身を含む): 34298208

約数和(自身を除く): 12933993

約数列:

[1, 3, 5, 15, 317, 951, 1585, 4493, 4755, 13479, 22465, 67395, 1424281, 4272843, 7121405, 21364215]

約数ペア:

[(1, 21364215), (3, 7121405), (5, 4272843), (15, 1424281), (317, 67395), (951, 22465), (1585, 13479), (4493, 4755)]