21553623

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26317}}^1$

素因数の和:26343

約数の個数: 24

約数和(自身を含む): 38319008

約数和(自身を除く): 16765385

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26317, 78951, 184219, 236853, 342121, 552657, 1026363, 1657971, 2394847, 3079089, 7184541, 21553623]

約数ペア:

[(1, 21553623), (3, 7184541), (7, 3079089), (9, 2394847), (13, 1657971), (21, 1026363), (39, 552657), (63, 342121), (91, 236853), (117, 184219), (273, 78951), (819, 26317)]