20512422

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{619}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 51068160

約数和(自身を除く): 30555738

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 263, 526, 619, 789, 1238, 1578, 1841, 1857, 2367, 3682, 3714, 4333, 4734, 5523, 5571, 8666, 11046, 11142, 12999, 16569, 25998, 33138, 38997, 77994, 162797, 325594, 488391, 976782, 1139579, 1465173, 2279158, 2930346, 3418737, 6837474, 10256211, 20512422]

約数ペア:

[(1, 20512422), (2, 10256211), (3, 6837474), (6, 3418737), (7, 2930346), (9, 2279158), (14, 1465173), (18, 1139579), (21, 976782), (42, 488391), (63, 325594), (126, 162797), (263, 77994), (526, 38997), (619, 33138), (789, 25998), (1238, 16569), (1578, 12999), (1841, 11142), (1857, 11046), (2367, 8666), (3682, 5571), (3714, 5523), (4333, 4734)]