21063284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478711}}^1$

素因数の和:478726

約数の個数: 12

約数和(自身を含む): 40211808

約数和(自身を除く): 19148524

約数列:

[1, 2, 4, 11, 22, 44, 478711, 957422, 1914844, 5265821, 10531642, 21063284]

約数ペア:

[(1, 21063284), (2, 10531642), (4, 5265821), (11, 1914844), (22, 957422), (44, 478711)]