21126196

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 45961216

約数和(自身を除く): 24835020

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 127, 182, 254, 364, 457, 508, 889, 914, 1651, 1778, 1828, 3199, 3302, 3556, 5941, 6398, 6604, 11557, 11882, 12796, 23114, 23764, 41587, 46228, 58039, 83174, 116078, 166348, 232156, 406273, 754507, 812546, 1509014, 1625092, 3018028, 5281549, 10563098, 21126196]

約数ペア:

[(1, 21126196), (2, 10563098), (4, 5281549), (7, 3018028), (13, 1625092), (14, 1509014), (26, 812546), (28, 754507), (52, 406273), (91, 232156), (127, 166348), (182, 116078), (254, 83174), (364, 58039), (457, 46228), (508, 41587), (889, 23764), (914, 23114), (1651, 12796), (1778, 11882), (1828, 11557), (3199, 6604), (3302, 6398), (3556, 5941)]