21604860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40009}}^1$

素因数の和:40027

約数の個数: 48

約数和(自身を含む): 67216800

約数和(自身を除く): 45611940

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, 40009, 80018, 120027, 160036, 200045, 240054, 360081, 400090, 480108, 600135, 720162, 800180, 1080243, 1200270, 1440324, 1800405, 2160486, 2400540, 3600810, 4320972, 5401215, 7201620, 10802430, 21604860]

約数ペア:

[(1, 21604860), (2, 10802430), (3, 7201620), (4, 5401215), (5, 4320972), (6, 3600810), (9, 2400540), (10, 2160486), (12, 1800405), (15, 1440324), (18, 1200270), (20, 1080243), (27, 800180), (30, 720162), (36, 600135), (45, 480108), (54, 400090), (60, 360081), (90, 240054), (108, 200045), (135, 160036), (180, 120027), (270, 80018), (540, 40009)]