21047612558

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2957}}^1\times {\mathrm{26759}}^1$

素因数の和:29744

約数の個数: 32

約数和(自身を含む): 37994918400

約数和(自身を除く): 16947305842

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 2957, 5914, 20699, 26759, 41398, 53518, 56183, 112366, 187313, 374626, 393281, 508421, 786562, 1016842, 3558947, 7117894, 79126363, 158252726, 553884541, 1107769082, 1503400897, 3006801794, 10523806279, 21047612558]

約数ペア:

[(1, 21047612558), (2, 10523806279), (7, 3006801794), (14, 1503400897), (19, 1107769082), (38, 553884541), (133, 158252726), (266, 79126363), (2957, 7117894), (5914, 3558947), (20699, 1016842), (26759, 786562), (41398, 508421), (53518, 393281), (56183, 374626), (112366, 187313)]