21707316

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 57867264

約数和(自身を除く): 36159948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 53, 62, 93, 106, 124, 159, 186, 212, 279, 318, 367, 372, 477, 558, 636, 734, 954, 1101, 1116, 1468, 1643, 1908, 2202, 3286, 3303, 4404, 4929, 6572, 6606, 9858, 11377, 13212, 14787, 19451, 19716, 22754, 29574, 34131, 38902, 45508, 58353, 59148, 68262, 77804, 102393, 116706, 136524, 175059, 204786, 233412, 350118, 409572, 602981, 700236, 1205962, 1808943, 2411924, 3617886, 5426829, 7235772, 10853658, 21707316]

約数ペア:

[(1, 21707316), (2, 10853658), (3, 7235772), (4, 5426829), (6, 3617886), (9, 2411924), (12, 1808943), (18, 1205962), (31, 700236), (36, 602981), (53, 409572), (62, 350118), (93, 233412), (106, 204786), (124, 175059), (159, 136524), (186, 116706), (212, 102393), (279, 77804), (318, 68262), (367, 59148), (372, 58353), (477, 45508), (558, 38902), (636, 34131), (734, 29574), (954, 22754), (1101, 19716), (1116, 19451), (1468, 14787), (1643, 13212), (1908, 11377), (2202, 9858), (3286, 6606), (3303, 6572), (4404, 4929)]