21436805

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1103}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 29092608

約数和(自身を除く): 7655803

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 1103, 1495, 3887, 5515, 14339, 19435, 25369, 71695, 126845, 186407, 329797, 932035, 1648985, 4287361, 21436805]

約数ペア:

[(1, 21436805), (5, 4287361), (13, 1648985), (23, 932035), (65, 329797), (115, 186407), (169, 126845), (299, 71695), (845, 25369), (1103, 19435), (1495, 14339), (3887, 5515)]