21679188

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 52450944

約数和(自身を除く): 30771756

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 157, 222, 311, 314, 444, 471, 622, 628, 933, 942, 1244, 1866, 1884, 3732, 5809, 11507, 11618, 17427, 23014, 23236, 34521, 34854, 46028, 48827, 69042, 69708, 97654, 138084, 146481, 195308, 292962, 585924, 1806599, 3613198, 5419797, 7226396, 10839594, 21679188]

約数ペア:

[(1, 21679188), (2, 10839594), (3, 7226396), (4, 5419797), (6, 3613198), (12, 1806599), (37, 585924), (74, 292962), (111, 195308), (148, 146481), (157, 138084), (222, 97654), (311, 69708), (314, 69042), (444, 48827), (471, 46028), (622, 34854), (628, 34521), (933, 23236), (942, 23014), (1244, 17427), (1866, 11618), (1884, 11507), (3732, 5809)]