21107020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2593}}^1$

素因数の和:2650

約数の個数: 48

約数和(自身を含む): 49680288

約数和(自身を除く): 28573268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2593, 4070, 5186, 8140, 10372, 12965, 25930, 28523, 51860, 57046, 95941, 114092, 142615, 191882, 285230, 383764, 479705, 570460, 959410, 1055351, 1918820, 2110702, 4221404, 5276755, 10553510, 21107020]

約数ペア:

[(1, 21107020), (2, 10553510), (4, 5276755), (5, 4221404), (10, 2110702), (11, 1918820), (20, 1055351), (22, 959410), (37, 570460), (44, 479705), (55, 383764), (74, 285230), (110, 191882), (148, 142615), (185, 114092), (220, 95941), (370, 57046), (407, 51860), (740, 28523), (814, 25930), (1628, 12965), (2035, 10372), (2593, 8140), (4070, 5186)]