21497508

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{6421}}^1$

素因数の和:6465

約数の個数: 48

約数和(自身を含む): 57541120

約数和(自身を除く): 36043612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 93, 108, 124, 186, 279, 372, 558, 837, 1116, 1674, 3348, 6421, 12842, 19263, 25684, 38526, 57789, 77052, 115578, 173367, 199051, 231156, 346734, 398102, 597153, 693468, 796204, 1194306, 1791459, 2388612, 3582918, 5374377, 7165836, 10748754, 21497508]

約数ペア:

[(1, 21497508), (2, 10748754), (3, 7165836), (4, 5374377), (6, 3582918), (9, 2388612), (12, 1791459), (18, 1194306), (27, 796204), (31, 693468), (36, 597153), (54, 398102), (62, 346734), (93, 231156), (108, 199051), (124, 173367), (186, 115578), (279, 77052), (372, 57789), (558, 38526), (837, 25684), (1116, 19263), (1674, 12842), (3348, 6421)]