20654964

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 58330272

約数和(自身を除く): 37675308

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 43, 44, 66, 86, 99, 129, 132, 172, 198, 258, 387, 396, 473, 516, 774, 946, 1213, 1419, 1548, 1892, 2426, 2838, 3639, 4257, 4852, 5676, 7278, 8514, 10917, 13343, 14556, 17028, 21834, 26686, 40029, 43668, 52159, 53372, 80058, 104318, 120087, 156477, 160116, 208636, 240174, 312954, 469431, 480348, 573749, 625908, 938862, 1147498, 1721247, 1877724, 2294996, 3442494, 5163741, 6884988, 10327482, 20654964]

約数ペア:

[(1, 20654964), (2, 10327482), (3, 6884988), (4, 5163741), (6, 3442494), (9, 2294996), (11, 1877724), (12, 1721247), (18, 1147498), (22, 938862), (33, 625908), (36, 573749), (43, 480348), (44, 469431), (66, 312954), (86, 240174), (99, 208636), (129, 160116), (132, 156477), (172, 120087), (198, 104318), (258, 80058), (387, 53372), (396, 52159), (473, 43668), (516, 40029), (774, 26686), (946, 21834), (1213, 17028), (1419, 14556), (1548, 13343), (1892, 10917), (2426, 8514), (2838, 7278), (3639, 5676), (4257, 4852)]