21506564

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13751}}^1$

素因数の和:13795

約数の個数: 24

約数和(自身を含む): 41586048

約数和(自身を除く): 20079484

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13751, 27502, 55004, 233767, 316273, 467534, 632546, 935068, 1265092, 5376641, 10753282, 21506564]

約数ペア:

[(1, 21506564), (2, 10753282), (4, 5376641), (17, 1265092), (23, 935068), (34, 632546), (46, 467534), (68, 316273), (92, 233767), (391, 55004), (782, 27502), (1564, 13751)]