21321496

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{691}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 49824000

約数和(自身を除く): 28502504

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 56, 58, 76, 116, 133, 152, 203, 232, 266, 406, 532, 551, 691, 812, 1064, 1102, 1382, 1624, 2204, 2764, 3857, 4408, 4837, 5528, 7714, 9674, 13129, 15428, 19348, 20039, 26258, 30856, 38696, 40078, 52516, 80156, 91903, 105032, 140273, 160312, 183806, 280546, 367612, 380741, 561092, 735224, 761482, 1122184, 1522964, 2665187, 3045928, 5330374, 10660748, 21321496]

約数ペア:

[(1, 21321496), (2, 10660748), (4, 5330374), (7, 3045928), (8, 2665187), (14, 1522964), (19, 1122184), (28, 761482), (29, 735224), (38, 561092), (56, 380741), (58, 367612), (76, 280546), (116, 183806), (133, 160312), (152, 140273), (203, 105032), (232, 91903), (266, 80156), (406, 52516), (532, 40078), (551, 38696), (691, 30856), (812, 26258), (1064, 20039), (1102, 19348), (1382, 15428), (1624, 13129), (2204, 9674), (2764, 7714), (3857, 5528), (4408, 4837)]