21121012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{480023}}^1$

素因数の和:480038

約数の個数: 12

約数和(自身を含む): 40322016

約数和(自身を除く): 19201004

約数列:

[1, 2, 4, 11, 22, 44, 480023, 960046, 1920092, 5280253, 10560506, 21121012]

約数ペア:

[(1, 21121012), (2, 10560506), (4, 5280253), (11, 1920092), (22, 960046), (44, 480023)]