20864772

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 34905852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 113, 138, 207, 223, 226, 276, 339, 414, 446, 452, 669, 678, 828, 892, 1017, 1338, 1356, 2007, 2034, 2599, 2676, 4014, 4068, 5129, 5198, 7797, 8028, 10258, 10396, 15387, 15594, 20516, 23391, 25199, 30774, 31188, 46161, 46782, 50398, 61548, 75597, 92322, 93564, 100796, 151194, 184644, 226791, 302388, 453582, 579577, 907164, 1159154, 1738731, 2318308, 3477462, 5216193, 6954924, 10432386, 20864772]

約数ペア:

[(1, 20864772), (2, 10432386), (3, 6954924), (4, 5216193), (6, 3477462), (9, 2318308), (12, 1738731), (18, 1159154), (23, 907164), (36, 579577), (46, 453582), (69, 302388), (92, 226791), (113, 184644), (138, 151194), (207, 100796), (223, 93564), (226, 92322), (276, 75597), (339, 61548), (414, 50398), (446, 46782), (452, 46161), (669, 31188), (678, 30774), (828, 25199), (892, 23391), (1017, 20516), (1338, 15594), (1356, 15387), (2007, 10396), (2034, 10258), (2599, 8028), (2676, 7797), (4014, 5198), (4068, 5129)]