21134360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 51861600

約数和(自身を除く): 30727240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 388, 419, 485, 520, 776, 838, 970, 1261, 1676, 1940, 2095, 2522, 3352, 3880, 4190, 5044, 5447, 6305, 8380, 10088, 10894, 12610, 16760, 21788, 25220, 27235, 40643, 43576, 50440, 54470, 81286, 108940, 162572, 203215, 217880, 325144, 406430, 528359, 812860, 1056718, 1625720, 2113436, 2641795, 4226872, 5283590, 10567180, 21134360]

約数ペア:

[(1, 21134360), (2, 10567180), (4, 5283590), (5, 4226872), (8, 2641795), (10, 2113436), (13, 1625720), (20, 1056718), (26, 812860), (40, 528359), (52, 406430), (65, 325144), (97, 217880), (104, 203215), (130, 162572), (194, 108940), (260, 81286), (388, 54470), (419, 50440), (485, 43576), (520, 40643), (776, 27235), (838, 25220), (970, 21788), (1261, 16760), (1676, 12610), (1940, 10894), (2095, 10088), (2522, 8380), (3352, 6305), (3880, 5447), (4190, 5044)]