21355412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{887}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 40379136

約数和(自身を除く): 19023724

約数列:

[1, 2, 4, 13, 26, 52, 463, 887, 926, 1774, 1852, 3548, 6019, 11531, 12038, 23062, 24076, 46124, 410681, 821362, 1642724, 5338853, 10677706, 21355412]

約数ペア:

[(1, 21355412), (2, 10677706), (4, 5338853), (13, 1642724), (26, 821362), (52, 410681), (463, 46124), (887, 24076), (926, 23062), (1774, 12038), (1852, 11531), (3548, 6019)]