20491528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6551}}^1$

素因数の和:6597

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 21965432

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6551, 13102, 26204, 52408, 111367, 150673, 222734, 301346, 445468, 602692, 890936, 1205384, 2561441, 5122882, 10245764, 20491528]

約数ペア:

[(1, 20491528), (2, 10245764), (4, 5122882), (8, 2561441), (17, 1205384), (23, 890936), (34, 602692), (46, 445468), (68, 301346), (92, 222734), (136, 150673), (184, 111367), (391, 52408), (782, 26204), (1564, 13102), (3128, 6551)]