21006100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2659}}^1$

素因数の和:2752

約数の個数: 36

約数和(自身を含む): 46177600

約数和(自身を除く): 25171500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 2659, 3950, 5318, 7900, 10636, 13295, 26590, 53180, 66475, 132950, 210061, 265900, 420122, 840244, 1050305, 2100610, 4201220, 5251525, 10503050, 21006100]

約数ペア:

[(1, 21006100), (2, 10503050), (4, 5251525), (5, 4201220), (10, 2100610), (20, 1050305), (25, 840244), (50, 420122), (79, 265900), (100, 210061), (158, 132950), (316, 66475), (395, 53180), (790, 26590), (1580, 13295), (1975, 10636), (2659, 7900), (3950, 5318)]