21286260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39419}}^1$

素因数の和:39437

約数の個数: 48

約数和(自身を含む): 66225600

約数和(自身を除く): 44939340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39419, 78838, 118257, 157676, 197095, 236514, 354771, 394190, 473028, 591285, 709542, 788380, 1064313, 1182570, 1419084, 1773855, 2128626, 2365140, 3547710, 4257252, 5321565, 7095420, 10643130, 21286260]

約数ペア:

[(1, 21286260), (2, 10643130), (3, 7095420), (4, 5321565), (5, 4257252), (6, 3547710), (9, 2365140), (10, 2128626), (12, 1773855), (15, 1419084), (18, 1182570), (20, 1064313), (27, 788380), (30, 709542), (36, 591285), (45, 473028), (54, 394190), (60, 354771), (90, 236514), (108, 197095), (135, 157676), (180, 118257), (270, 78838), (540, 39419)]