21782612012

素因数分解:

$2^2\times 7^1\times {\mathrm{777950429}}^1$

素因数の和:777950440

約数の個数: 12

約数和(自身を含む): 43565224080

約数和(自身を除く): 21782612068

約数列:

[1, 2, 4, 7, 14, 28, 777950429, 1555900858, 3111801716, 5445653003, 10891306006, 21782612012]

約数ペア:

[(1, 21782612012), (2, 10891306006), (4, 5445653003), (7, 3111801716), (14, 1555900858), (28, 777950429)]