21472165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 9372635

約数列:

[1, 5, 11, 13, 55, 59, 65, 143, 295, 509, 649, 715, 767, 2545, 3245, 3835, 5599, 6617, 8437, 27995, 30031, 33085, 42185, 72787, 150155, 330341, 363935, 390403, 1651705, 1952015, 4294433, 21472165]

約数ペア:

[(1, 21472165), (5, 4294433), (11, 1952015), (13, 1651705), (55, 390403), (59, 363935), (65, 330341), (143, 150155), (295, 72787), (509, 42185), (649, 33085), (715, 30031), (767, 27995), (2545, 8437), (3245, 6617), (3835, 5599)]