21938378

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 20808886

約数列:

[1, 2, 7, 11, 14, 22, 47, 49, 77, 94, 98, 154, 329, 433, 517, 539, 658, 866, 1034, 1078, 2303, 3031, 3619, 4606, 4763, 6062, 7238, 9526, 20351, 21217, 25333, 33341, 40702, 42434, 50666, 66682, 142457, 223861, 233387, 284914, 447722, 466774, 997199, 1567027, 1994398, 3134054, 10969189, 21938378]

約数ペア:

[(1, 21938378), (2, 10969189), (7, 3134054), (11, 1994398), (14, 1567027), (22, 997199), (47, 466774), (49, 447722), (77, 284914), (94, 233387), (98, 223861), (154, 142457), (329, 66682), (433, 50666), (517, 42434), (539, 40702), (658, 33341), (866, 25333), (1034, 21217), (1078, 20351), (2303, 9526), (3031, 7238), (3619, 6062), (4606, 4763)]