20556944

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75577}}^1$

素因数の和:75602

約数の個数: 20

約数和(自身を含む): 42172524

約数和(自身を除く): 21615580

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75577, 151154, 302308, 604616, 1209232, 1284809, 2569618, 5139236, 10278472, 20556944]

約数ペア:

[(1, 20556944), (2, 10278472), (4, 5139236), (8, 2569618), (16, 1284809), (17, 1209232), (34, 604616), (68, 302308), (136, 151154), (272, 75577)]