20951224

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 50274000

約数和(自身を除く): 29322776

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 49, 56, 58, 76, 97, 98, 116, 133, 152, 194, 196, 203, 232, 266, 388, 392, 406, 532, 551, 679, 776, 812, 931, 1064, 1102, 1358, 1421, 1624, 1843, 1862, 2204, 2716, 2813, 2842, 3686, 3724, 3857, 4408, 4753, 5432, 5626, 5684, 7372, 7448, 7714, 9506, 11252, 11368, 12901, 14744, 15428, 19012, 19691, 22504, 25802, 26999, 30856, 38024, 39382, 51604, 53447, 53998, 78764, 90307, 103208, 106894, 107996, 137837, 157528, 180614, 213788, 215992, 275674, 361228, 374129, 427576, 551348, 722456, 748258, 1102696, 1496516, 2618903, 2993032, 5237806, 10475612, 20951224]

約数ペア:

[(1, 20951224), (2, 10475612), (4, 5237806), (7, 2993032), (8, 2618903), (14, 1496516), (19, 1102696), (28, 748258), (29, 722456), (38, 551348), (49, 427576), (56, 374129), (58, 361228), (76, 275674), (97, 215992), (98, 213788), (116, 180614), (133, 157528), (152, 137837), (194, 107996), (196, 106894), (203, 103208), (232, 90307), (266, 78764), (388, 53998), (392, 53447), (406, 51604), (532, 39382), (551, 38024), (679, 30856), (776, 26999), (812, 25802), (931, 22504), (1064, 19691), (1102, 19012), (1358, 15428), (1421, 14744), (1624, 12901), (1843, 11368), (1862, 11252), (2204, 9506), (2716, 7714), (2813, 7448), (2842, 7372), (3686, 5684), (3724, 5626), (3857, 5432), (4408, 4753)]