16720011

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1049}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 14729589

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 63, 69, 77, 99, 161, 207, 231, 253, 483, 693, 759, 1049, 1449, 1771, 2277, 3147, 5313, 7343, 9441, 11539, 15939, 22029, 24127, 34617, 66087, 72381, 80773, 103851, 168889, 217143, 242319, 265397, 506667, 726957, 796191, 1520001, 1857779, 2388573, 5573337, 16720011]

約数ペア:

[(1, 16720011), (3, 5573337), (7, 2388573), (9, 1857779), (11, 1520001), (21, 796191), (23, 726957), (33, 506667), (63, 265397), (69, 242319), (77, 217143), (99, 168889), (161, 103851), (207, 80773), (231, 72381), (253, 66087), (483, 34617), (693, 24127), (759, 22029), (1049, 15939), (1449, 11539), (1771, 9441), (2277, 7343), (3147, 5313)]