20807865

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35569}}^1$

素因数の和:35593

約数の個数: 24

約数和(自身を含む): 38842440

約数和(自身を除く): 18034575

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35569, 106707, 177845, 320121, 462397, 533535, 1387191, 1600605, 2311985, 4161573, 6935955, 20807865]

約数ペア:

[(1, 20807865), (3, 6935955), (5, 4161573), (9, 2311985), (13, 1600605), (15, 1387191), (39, 533535), (45, 462397), (65, 320121), (117, 177845), (195, 106707), (585, 35569)]