21896070

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{821}}^1$

素因数の和:965

約数の個数: 64

約数和(自身を含む): 60604416

約数和(自身を除く): 38708346

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 127, 210, 254, 381, 635, 762, 821, 889, 1270, 1642, 1778, 1905, 2463, 2667, 3810, 4105, 4445, 4926, 5334, 5747, 8210, 8890, 11494, 12315, 13335, 17241, 24630, 26670, 28735, 34482, 57470, 86205, 104267, 172410, 208534, 312801, 521335, 625602, 729869, 1042670, 1459738, 1564005, 2189607, 3128010, 3649345, 4379214, 7298690, 10948035, 21896070]

約数ペア:

[(1, 21896070), (2, 10948035), (3, 7298690), (5, 4379214), (6, 3649345), (7, 3128010), (10, 2189607), (14, 1564005), (15, 1459738), (21, 1042670), (30, 729869), (35, 625602), (42, 521335), (70, 312801), (105, 208534), (127, 172410), (210, 104267), (254, 86205), (381, 57470), (635, 34482), (762, 28735), (821, 26670), (889, 24630), (1270, 17241), (1642, 13335), (1778, 12315), (1905, 11494), (2463, 8890), (2667, 8210), (3810, 5747), (4105, 5334), (4445, 4926)]