21000339328

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{1129}}^1\times {\mathrm{5011}}^1$

素因数の和:6183

約数の個数: 64

約数和(自身を含む): 43326234000

約数和(自身を除く): 22325894672

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 464, 928, 1129, 1856, 2258, 3712, 4516, 5011, 9032, 10022, 18064, 20044, 32741, 36128, 40088, 65482, 72256, 80176, 130964, 144512, 145319, 160352, 261928, 290638, 320704, 523856, 581276, 641408, 1047712, 1162552, 2095424, 2325104, 4190848, 4650208, 5657419, 9300416, 11314838, 18600832, 22629676, 45259352, 90518704, 164065151, 181037408, 328130302, 362074816, 656260604, 724149632, 1312521208, 2625042416, 5250084832, 10500169664, 21000339328]

約数ペア:

[(1, 21000339328), (2, 10500169664), (4, 5250084832), (8, 2625042416), (16, 1312521208), (29, 724149632), (32, 656260604), (58, 362074816), (64, 328130302), (116, 181037408), (128, 164065151), (232, 90518704), (464, 45259352), (928, 22629676), (1129, 18600832), (1856, 11314838), (2258, 9300416), (3712, 5657419), (4516, 4650208), (5011, 4190848), (9032, 2325104), (10022, 2095424), (18064, 1162552), (20044, 1047712), (32741, 641408), (36128, 581276), (40088, 523856), (65482, 320704), (72256, 290638), (80176, 261928), (130964, 160352), (144512, 145319)]