21808995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1153}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 37998912

約数和(自身を除く): 16189917

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 195, 291, 485, 1153, 1261, 1455, 3459, 3783, 5765, 6305, 14989, 17295, 18915, 44967, 74945, 111841, 224835, 335523, 559205, 1453933, 1677615, 4361799, 7269665, 21808995]

約数ペア:

[(1, 21808995), (3, 7269665), (5, 4361799), (13, 1677615), (15, 1453933), (39, 559205), (65, 335523), (97, 224835), (195, 111841), (291, 74945), (485, 44967), (1153, 18915), (1261, 17295), (1455, 14989), (3459, 6305), (3783, 5765)]