21175640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23017}}^1$

素因数の和:23051

約数の個数: 32

約数和(自身を含む): 49718880

約数和(自身を除く): 28543240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23017, 46034, 92068, 115085, 184136, 230170, 460340, 529391, 920680, 1058782, 2117564, 2646955, 4235128, 5293910, 10587820, 21175640]

約数ペア:

[(1, 21175640), (2, 10587820), (4, 5293910), (5, 4235128), (8, 2646955), (10, 2117564), (20, 1058782), (23, 920680), (40, 529391), (46, 460340), (92, 230170), (115, 184136), (184, 115085), (230, 92068), (460, 46034), (920, 23017)]