21421246

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7321}}^1$

素因数の和:7360

約数の個数: 32

約数和(自身を含む): 42174720

約数和(自身を除く): 20753474

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 7321, 14642, 51247, 80531, 102494, 139099, 161062, 278198, 563717, 973693, 1127434, 1530089, 1947386, 3060178, 10710623, 21421246]

約数ペア:

[(1, 21421246), (2, 10710623), (7, 3060178), (11, 1947386), (14, 1530089), (19, 1127434), (22, 973693), (38, 563717), (77, 278198), (133, 161062), (154, 139099), (209, 102494), (266, 80531), (418, 51247), (1463, 14642), (2926, 7321)]