21992523

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^2\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 36

約数和(自身を含む): 35355960

約数和(自身を除く): 13363437

約数列:

[1, 3, 7, 21, 41, 49, 89, 123, 147, 267, 287, 623, 861, 1681, 1869, 2009, 3649, 4361, 5043, 6027, 10947, 11767, 13083, 25543, 35301, 76629, 82369, 149609, 178801, 247107, 448827, 536403, 1047263, 3141789, 7330841, 21992523]

約数ペア:

[(1, 21992523), (3, 7330841), (7, 3141789), (21, 1047263), (41, 536403), (49, 448827), (89, 247107), (123, 178801), (147, 149609), (267, 82369), (287, 76629), (623, 35301), (861, 25543), (1681, 13083), (1869, 11767), (2009, 10947), (3649, 6027), (4361, 5043)]