21945276

素因数分解:

$2^2\times 3^3\times {\mathrm{317}}^1\times {\mathrm{641}}^1$

素因数の和:971

約数の個数: 48

約数和(自身を含む): 57163680

約数和(自身を除く): 35218404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 317, 634, 641, 951, 1268, 1282, 1902, 1923, 2564, 2853, 3804, 3846, 5706, 5769, 7692, 8559, 11412, 11538, 17118, 17307, 23076, 34236, 34614, 69228, 203197, 406394, 609591, 812788, 1219182, 1828773, 2438364, 3657546, 5486319, 7315092, 10972638, 21945276]

約数ペア:

[(1, 21945276), (2, 10972638), (3, 7315092), (4, 5486319), (6, 3657546), (9, 2438364), (12, 1828773), (18, 1219182), (27, 812788), (36, 609591), (54, 406394), (108, 203197), (317, 69228), (634, 34614), (641, 34236), (951, 23076), (1268, 17307), (1282, 17118), (1902, 11538), (1923, 11412), (2564, 8559), (2853, 7692), (3804, 5769), (3846, 5706)]