21445984

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5039}}^1$

素因数の和:5075

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29357216

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 5039, 10078, 20156, 35273, 40312, 70546, 80624, 95741, 141092, 161248, 191482, 282184, 382964, 564368, 670187, 765928, 1128736, 1340374, 1531856, 2680748, 3063712, 5361496, 10722992, 21445984]

約数ペア:

[(1, 21445984), (2, 10722992), (4, 5361496), (7, 3063712), (8, 2680748), (14, 1531856), (16, 1340374), (19, 1128736), (28, 765928), (32, 670187), (38, 564368), (56, 382964), (76, 282184), (112, 191482), (133, 161248), (152, 141092), (224, 95741), (266, 80624), (304, 70546), (532, 40312), (608, 35273), (1064, 20156), (2128, 10078), (4256, 5039)]