21433216

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1259}}^1$

素因数の和:1299

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 29974784

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 266, 304, 448, 532, 608, 896, 1064, 1216, 1259, 2128, 2432, 2518, 4256, 5036, 8512, 8813, 10072, 17024, 17626, 20144, 23921, 35252, 40288, 47842, 70504, 80576, 95684, 141008, 161152, 167447, 191368, 282016, 334894, 382736, 564032, 669788, 765472, 1128064, 1339576, 1530944, 2679152, 3061888, 5358304, 10716608, 21433216]

約数ペア:

[(1, 21433216), (2, 10716608), (4, 5358304), (7, 3061888), (8, 2679152), (14, 1530944), (16, 1339576), (19, 1128064), (28, 765472), (32, 669788), (38, 564032), (56, 382736), (64, 334894), (76, 282016), (112, 191368), (128, 167447), (133, 161152), (152, 141008), (224, 95684), (266, 80576), (304, 70504), (448, 47842), (532, 40288), (608, 35252), (896, 23921), (1064, 20144), (1216, 17626), (1259, 17024), (2128, 10072), (2432, 8813), (2518, 8512), (4256, 5036)]