21091056

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1531}}^1$

素因数の和:1590

約数の個数: 80

約数和(自身を含む): 63829248

約数和(自身を除く): 42738192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 82, 84, 112, 123, 164, 168, 246, 287, 328, 336, 492, 574, 656, 861, 984, 1148, 1531, 1722, 1968, 2296, 3062, 3444, 4592, 4593, 6124, 6888, 9186, 10717, 12248, 13776, 18372, 21434, 24496, 32151, 36744, 42868, 62771, 64302, 73488, 85736, 125542, 128604, 171472, 188313, 251084, 257208, 376626, 439397, 502168, 514416, 753252, 878794, 1004336, 1318191, 1506504, 1757588, 2636382, 3013008, 3515176, 5272764, 7030352, 10545528, 21091056]

約数ペア:

[(1, 21091056), (2, 10545528), (3, 7030352), (4, 5272764), (6, 3515176), (7, 3013008), (8, 2636382), (12, 1757588), (14, 1506504), (16, 1318191), (21, 1004336), (24, 878794), (28, 753252), (41, 514416), (42, 502168), (48, 439397), (56, 376626), (82, 257208), (84, 251084), (112, 188313), (123, 171472), (164, 128604), (168, 125542), (246, 85736), (287, 73488), (328, 64302), (336, 62771), (492, 42868), (574, 36744), (656, 32151), (861, 24496), (984, 21434), (1148, 18372), (1531, 13776), (1722, 12248), (1968, 10717), (2296, 9186), (3062, 6888), (3444, 6124), (4592, 4593)]