21939645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16073}}^1$

素因数の和:16101

約数の個数: 32

約数和(自身を含む): 43206912

約数和(自身を除く): 21267267

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 16073, 48219, 80365, 112511, 208949, 241095, 337533, 562555, 626847, 1044745, 1462643, 1687665, 3134235, 4387929, 7313215, 21939645]

約数ペア:

[(1, 21939645), (3, 7313215), (5, 4387929), (7, 3134235), (13, 1687665), (15, 1462643), (21, 1044745), (35, 626847), (39, 562555), (65, 337533), (91, 241095), (105, 208949), (195, 112511), (273, 80365), (455, 48219), (1365, 16073)]