21527805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2083}}^1$

素因数の和:2157

約数の個数: 32

約数和(自身を含む): 37812096

約数和(自身を除く): 16284291

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 2067, 2083, 3445, 6249, 10335, 10415, 27079, 31245, 81237, 110399, 135395, 331197, 406185, 551995, 1435187, 1655985, 4305561, 7175935, 21527805]

約数ペア:

[(1, 21527805), (3, 7175935), (5, 4305561), (13, 1655985), (15, 1435187), (39, 551995), (53, 406185), (65, 331197), (159, 135395), (195, 110399), (265, 81237), (689, 31245), (795, 27079), (2067, 10415), (2083, 10335), (3445, 6249)]