21000228214

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{188137}}^1$

素因数の和:188237

約数の個数: 48

約数和(自身を含む): 39378035952

約数和(自身を除く): 18377807738

約数列:

[1, 2, 7, 14, 17, 34, 49, 67, 98, 119, 134, 238, 469, 833, 938, 1139, 1666, 2278, 3283, 6566, 7973, 15946, 55811, 111622, 188137, 376274, 1316959, 2633918, 3198329, 6396658, 9218713, 12605179, 18437426, 22388303, 25210358, 44776606, 88236253, 156718121, 176472506, 214288043, 313436242, 428576086, 617653771, 1235307542, 1500016301, 3000032602, 10500114107, 21000228214]

約数ペア:

[(1, 21000228214), (2, 10500114107), (7, 3000032602), (14, 1500016301), (17, 1235307542), (34, 617653771), (49, 428576086), (67, 313436242), (98, 214288043), (119, 176472506), (134, 156718121), (238, 88236253), (469, 44776606), (833, 25210358), (938, 22388303), (1139, 18437426), (1666, 12605179), (2278, 9218713), (3283, 6396658), (6566, 3198329), (7973, 2633918), (15946, 1316959), (55811, 376274), (111622, 188137)]