21505176

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:467

約数の個数: 160

約数和(自身を含む): 75271680

約数和(自身を除く): 53766504

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 54, 56, 63, 66, 72, 77, 81, 84, 88, 99, 108, 126, 132, 154, 162, 168, 189, 198, 216, 231, 252, 264, 297, 308, 324, 378, 396, 431, 462, 504, 567, 594, 616, 648, 693, 756, 792, 862, 891, 924, 1134, 1188, 1293, 1386, 1512, 1724, 1782, 1848, 2079, 2268, 2376, 2586, 2772, 3017, 3448, 3564, 3879, 4158, 4536, 4741, 5172, 5544, 6034, 6237, 7128, 7758, 8316, 9051, 9482, 10344, 11637, 12068, 12474, 14223, 15516, 16632, 18102, 18964, 23274, 24136, 24948, 27153, 28446, 31032, 33187, 34911, 36204, 37928, 42669, 46548, 49896, 54306, 56892, 66374, 69822, 72408, 81459, 85338, 93096, 99561, 108612, 113784, 128007, 132748, 139644, 162918, 170676, 199122, 217224, 244377, 256014, 265496, 279288, 298683, 325836, 341352, 384021, 398244, 488754, 512028, 597366, 651672, 768042, 796488, 896049, 977508, 1024056, 1194732, 1536084, 1792098, 1955016, 2389464, 2688147, 3072168, 3584196, 5376294, 7168392, 10752588, 21505176]

約数ペア:

[(1, 21505176), (2, 10752588), (3, 7168392), (4, 5376294), (6, 3584196), (7, 3072168), (8, 2688147), (9, 2389464), (11, 1955016), (12, 1792098), (14, 1536084), (18, 1194732), (21, 1024056), (22, 977508), (24, 896049), (27, 796488), (28, 768042), (33, 651672), (36, 597366), (42, 512028), (44, 488754), (54, 398244), (56, 384021), (63, 341352), (66, 325836), (72, 298683), (77, 279288), (81, 265496), (84, 256014), (88, 244377), (99, 217224), (108, 199122), (126, 170676), (132, 162918), (154, 139644), (162, 132748), (168, 128007), (189, 113784), (198, 108612), (216, 99561), (231, 93096), (252, 85338), (264, 81459), (297, 72408), (308, 69822), (324, 66374), (378, 56892), (396, 54306), (431, 49896), (462, 46548), (504, 42669), (567, 37928), (594, 36204), (616, 34911), (648, 33187), (693, 31032), (756, 28446), (792, 27153), (862, 24948), (891, 24136), (924, 23274), (1134, 18964), (1188, 18102), (1293, 16632), (1386, 15516), (1512, 14223), (1724, 12474), (1782, 12068), (1848, 11637), (2079, 10344), (2268, 9482), (2376, 9051), (2586, 8316), (2772, 7758), (3017, 7128), (3448, 6237), (3564, 6034), (3879, 5544), (4158, 5172), (4536, 4741)]