21047632

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1$

素因数の和:595

約数の個数: 40

約数和(自身を含む): 43497216

約数和(自身を除く): 22449584

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 223, 272, 347, 446, 694, 892, 1388, 1784, 2776, 3568, 3791, 5552, 5899, 7582, 11798, 15164, 23596, 30328, 47192, 60656, 77381, 94384, 154762, 309524, 619048, 1238096, 1315477, 2630954, 5261908, 10523816, 21047632]

約数ペア:

[(1, 21047632), (2, 10523816), (4, 5261908), (8, 2630954), (16, 1315477), (17, 1238096), (34, 619048), (68, 309524), (136, 154762), (223, 94384), (272, 77381), (347, 60656), (446, 47192), (694, 30328), (892, 23596), (1388, 15164), (1784, 11798), (2776, 7582), (3568, 5899), (3791, 5552)]