21966804

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 58673160

約数和(自身を除く): 36706356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 53, 58, 87, 106, 116, 159, 174, 212, 261, 318, 348, 397, 477, 522, 636, 794, 954, 1044, 1191, 1537, 1588, 1908, 2382, 3074, 3573, 4611, 4764, 6148, 7146, 9222, 11513, 13833, 14292, 18444, 21041, 23026, 27666, 34539, 42082, 46052, 55332, 63123, 69078, 84164, 103617, 126246, 138156, 189369, 207234, 252492, 378738, 414468, 610189, 757476, 1220378, 1830567, 2440756, 3661134, 5491701, 7322268, 10983402, 21966804]

約数ペア:

[(1, 21966804), (2, 10983402), (3, 7322268), (4, 5491701), (6, 3661134), (9, 2440756), (12, 1830567), (18, 1220378), (29, 757476), (36, 610189), (53, 414468), (58, 378738), (87, 252492), (106, 207234), (116, 189369), (159, 138156), (174, 126246), (212, 103617), (261, 84164), (318, 69078), (348, 63123), (397, 55332), (477, 46052), (522, 42082), (636, 34539), (794, 27666), (954, 23026), (1044, 21041), (1191, 18444), (1537, 14292), (1588, 13833), (1908, 11513), (2382, 9222), (3074, 7146), (3573, 6148), (4611, 4764)]