21029752

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{541}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 40780080

約数和(自身を除く): 19750328

約数列:

[1, 2, 4, 8, 43, 86, 113, 172, 226, 344, 452, 541, 904, 1082, 2164, 4328, 4859, 9718, 19436, 23263, 38872, 46526, 61133, 93052, 122266, 186104, 244532, 489064, 2628719, 5257438, 10514876, 21029752]

約数ペア:

[(1, 21029752), (2, 10514876), (4, 5257438), (8, 2628719), (43, 489064), (86, 244532), (113, 186104), (172, 122266), (226, 93052), (344, 61133), (452, 46526), (541, 38872), (904, 23263), (1082, 19436), (2164, 9718), (4328, 4859)]