21074580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13009}}^1$

素因数の和:13030

約数の個数: 60

約数和(自身を含む): 66116820

約数和(自身を除く): 45042240

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13009, 26018, 39027, 52036, 65045, 78054, 117081, 130090, 156108, 195135, 234162, 260180, 351243, 390270, 468324, 585405, 702486, 780540, 1053729, 1170810, 1404972, 1756215, 2107458, 2341620, 3512430, 4214916, 5268645, 7024860, 10537290, 21074580]

約数ペア:

[(1, 21074580), (2, 10537290), (3, 7024860), (4, 5268645), (5, 4214916), (6, 3512430), (9, 2341620), (10, 2107458), (12, 1756215), (15, 1404972), (18, 1170810), (20, 1053729), (27, 780540), (30, 702486), (36, 585405), (45, 468324), (54, 390270), (60, 351243), (81, 260180), (90, 234162), (108, 195135), (135, 156108), (162, 130090), (180, 117081), (270, 78054), (324, 65045), (405, 52036), (540, 39027), (810, 26018), (1620, 13009)]