21477660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1151}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 60383232

約数和(自身を除く): 38905572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 1151, 1244, 1555, 1866, 2302, 3110, 3453, 3732, 4604, 4665, 5755, 6220, 6906, 9330, 11510, 13812, 17265, 18660, 23020, 34530, 69060, 357961, 715922, 1073883, 1431844, 1789805, 2147766, 3579610, 4295532, 5369415, 7159220, 10738830, 21477660]

約数ペア:

[(1, 21477660), (2, 10738830), (3, 7159220), (4, 5369415), (5, 4295532), (6, 3579610), (10, 2147766), (12, 1789805), (15, 1431844), (20, 1073883), (30, 715922), (60, 357961), (311, 69060), (622, 34530), (933, 23020), (1151, 18660), (1244, 17265), (1555, 13812), (1866, 11510), (2302, 9330), (3110, 6906), (3453, 6220), (3732, 5755), (4604, 4665)]