20448909

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 15839091

約数列:

[1, 3, 9, 13, 17, 23, 27, 39, 51, 69, 117, 149, 153, 207, 221, 299, 351, 391, 447, 459, 621, 663, 897, 1173, 1341, 1937, 1989, 2533, 2691, 3427, 3519, 4023, 5083, 5811, 5967, 7599, 8073, 10281, 10557, 15249, 17433, 22797, 30843, 32929, 44551, 45747, 52299, 58259, 68391, 92529, 98787, 133653, 137241, 174777, 296361, 400959, 524331, 757367, 889083, 1202877, 1572993, 2272101, 6816303, 20448909]

約数ペア:

[(1, 20448909), (3, 6816303), (9, 2272101), (13, 1572993), (17, 1202877), (23, 889083), (27, 757367), (39, 524331), (51, 400959), (69, 296361), (117, 174777), (149, 137241), (153, 133653), (207, 98787), (221, 92529), (299, 68391), (351, 58259), (391, 52299), (447, 45747), (459, 44551), (621, 32929), (663, 30843), (897, 22797), (1173, 17433), (1341, 15249), (1937, 10557), (1989, 10281), (2533, 8073), (2691, 7599), (3427, 5967), (3519, 5811), (4023, 5083)]