21007620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38903}}^1$

素因数の和:38921

約数の個数: 48

約数和(自身を含む): 65358720

約数和(自身を除く): 44351100

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, 38903, 77806, 116709, 155612, 194515, 233418, 350127, 389030, 466836, 583545, 700254, 778060, 1050381, 1167090, 1400508, 1750635, 2100762, 2334180, 3501270, 4201524, 5251905, 7002540, 10503810, 21007620]

約数ペア:

[(1, 21007620), (2, 10503810), (3, 7002540), (4, 5251905), (5, 4201524), (6, 3501270), (9, 2334180), (10, 2100762), (12, 1750635), (15, 1400508), (18, 1167090), (20, 1050381), (27, 778060), (30, 700254), (36, 583545), (45, 466836), (54, 389030), (60, 350127), (90, 233418), (108, 194515), (135, 155612), (180, 116709), (270, 77806), (540, 38903)]