20866608

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 120

約数和(自身を含む): 67678208

約数和(自身を除く): 46811600

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 127, 144, 163, 168, 252, 254, 326, 336, 381, 489, 504, 508, 652, 762, 889, 978, 1008, 1016, 1141, 1143, 1304, 1467, 1524, 1778, 1956, 2032, 2282, 2286, 2608, 2667, 2934, 3048, 3423, 3556, 3912, 4564, 4572, 5334, 5868, 6096, 6846, 7112, 7824, 8001, 9128, 9144, 10269, 10668, 11736, 13692, 14224, 16002, 18256, 18288, 20538, 20701, 21336, 23472, 27384, 32004, 41076, 41402, 42672, 54768, 62103, 64008, 82152, 82804, 124206, 128016, 144907, 164304, 165608, 186309, 248412, 289814, 331216, 372618, 434721, 496824, 579628, 745236, 869442, 993648, 1159256, 1304163, 1490472, 1738884, 2318512, 2608326, 2980944, 3477768, 5216652, 6955536, 10433304, 20866608]

約数ペア:

[(1, 20866608), (2, 10433304), (3, 6955536), (4, 5216652), (6, 3477768), (7, 2980944), (8, 2608326), (9, 2318512), (12, 1738884), (14, 1490472), (16, 1304163), (18, 1159256), (21, 993648), (24, 869442), (28, 745236), (36, 579628), (42, 496824), (48, 434721), (56, 372618), (63, 331216), (72, 289814), (84, 248412), (112, 186309), (126, 165608), (127, 164304), (144, 144907), (163, 128016), (168, 124206), (252, 82804), (254, 82152), (326, 64008), (336, 62103), (381, 54768), (489, 42672), (504, 41402), (508, 41076), (652, 32004), (762, 27384), (889, 23472), (978, 21336), (1008, 20701), (1016, 20538), (1141, 18288), (1143, 18256), (1304, 16002), (1467, 14224), (1524, 13692), (1778, 11736), (1956, 10668), (2032, 10269), (2282, 9144), (2286, 9128), (2608, 8001), (2667, 7824), (2934, 7112), (3048, 6846), (3423, 6096), (3556, 5868), (3912, 5334), (4564, 4572)]