21073648

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24851}}^1$

素因数の和:24912

約数の個数: 20

約数和(自身を含む): 41602248

約数和(自身を除く): 20528600

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24851, 49702, 99404, 198808, 397616, 1317103, 2634206, 5268412, 10536824, 21073648]

約数ペア:

[(1, 21073648), (2, 10536824), (4, 5268412), (8, 2634206), (16, 1317103), (53, 397616), (106, 198808), (212, 99404), (424, 49702), (848, 24851)]