7421985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 13747968

約数和(自身を除く): 6325983

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 101, 115, 207, 213, 303, 345, 355, 505, 639, 909, 1035, 1065, 1515, 1633, 2323, 3195, 4545, 4899, 6969, 7171, 8165, 11615, 14697, 20907, 21513, 24495, 34845, 35855, 64539, 73485, 104535, 107565, 164933, 322695, 494799, 824665, 1484397, 2473995, 7421985]

約数ペア:

[(1, 7421985), (3, 2473995), (5, 1484397), (9, 824665), (15, 494799), (23, 322695), (45, 164933), (69, 107565), (71, 104535), (101, 73485), (115, 64539), (207, 35855), (213, 34845), (303, 24495), (345, 21513), (355, 20907), (505, 14697), (639, 11615), (909, 8165), (1035, 7171), (1065, 6969), (1515, 4899), (1633, 4545), (2323, 3195)]