201620055

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21101}}^1$

素因数の和:21136

約数の個数: 48

約数和(自身を含む): 404145504

約数和(自身を除く): 202525449

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 3185, 9555, 21101, 63303, 105505, 147707, 274313, 316515, 443121, 738535, 822939, 1033949, 1371565, 1920191, 2215605, 3101847, 4114695, 5169745, 5760573, 9600955, 13441337, 15509235, 28802865, 40324011, 67206685, 201620055]

約数ペア:

[(1, 201620055), (3, 67206685), (5, 40324011), (7, 28802865), (13, 15509235), (15, 13441337), (21, 9600955), (35, 5760573), (39, 5169745), (49, 4114695), (65, 3101847), (91, 2215605), (105, 1920191), (147, 1371565), (195, 1033949), (245, 822939), (273, 738535), (455, 443121), (637, 316515), (735, 274313), (1365, 147707), (1911, 105505), (3185, 63303), (9555, 21101)]