21501252

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35108028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 59, 106, 118, 159, 177, 191, 212, 236, 318, 354, 382, 477, 531, 573, 636, 708, 764, 954, 1062, 1146, 1719, 1908, 2124, 2292, 3127, 3438, 6254, 6876, 9381, 10123, 11269, 12508, 18762, 20246, 22538, 28143, 30369, 33807, 37524, 40492, 45076, 56286, 60738, 67614, 91107, 101421, 112572, 121476, 135228, 182214, 202842, 364428, 405684, 597257, 1194514, 1791771, 2389028, 3583542, 5375313, 7167084, 10750626, 21501252]

約数ペア:

[(1, 21501252), (2, 10750626), (3, 7167084), (4, 5375313), (6, 3583542), (9, 2389028), (12, 1791771), (18, 1194514), (36, 597257), (53, 405684), (59, 364428), (106, 202842), (118, 182214), (159, 135228), (177, 121476), (191, 112572), (212, 101421), (236, 91107), (318, 67614), (354, 60738), (382, 56286), (477, 45076), (531, 40492), (573, 37524), (636, 33807), (708, 30369), (764, 28143), (954, 22538), (1062, 20246), (1146, 18762), (1719, 12508), (1908, 11269), (2124, 10123), (2292, 9381), (3127, 6876), (3438, 6254)]