21319832

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{10133}}^1$

素因数の和:10402

約数の個数: 16

約数和(自身を含む): 40130640

約数和(自身を除く): 18810808

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 10133, 20266, 40532, 81064, 2664979, 5329958, 10659916, 21319832]

約数ペア:

[(1, 21319832), (2, 10659916), (4, 5329958), (8, 2664979), (263, 81064), (526, 40532), (1052, 20266), (2104, 10133)]