20999628

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{14957}}^1$

素因数の和:14983

約数の個数: 48

約数和(自身を含む): 58635360

約数和(自身を除く): 37635732

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 14957, 29914, 44871, 59828, 89742, 134613, 179484, 194441, 269226, 388882, 403839, 538452, 583323, 777764, 807678, 1166646, 1615356, 1749969, 2333292, 3499938, 5249907, 6999876, 10499814, 20999628]

約数ペア:

[(1, 20999628), (2, 10499814), (3, 6999876), (4, 5249907), (6, 3499938), (9, 2333292), (12, 1749969), (13, 1615356), (18, 1166646), (26, 807678), (27, 777764), (36, 583323), (39, 538452), (52, 403839), (54, 388882), (78, 269226), (108, 194441), (117, 179484), (156, 134613), (234, 89742), (351, 59828), (468, 44871), (702, 29914), (1404, 14957)]