19201910

素因数分解:

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

素因数の和:21128

約数の個数: 32

約数和(自身を含む): 42541632

約数和(自身を除く): 23339722

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 21101, 42202, 105505, 147707, 211010, 274313, 295414, 548626, 738535, 1371565, 1477070, 1920191, 2743130, 3840382, 9600955, 19201910]

約数ペア:

[(1, 19201910), (2, 9600955), (5, 3840382), (7, 2743130), (10, 1920191), (13, 1477070), (14, 1371565), (26, 738535), (35, 548626), (65, 295414), (70, 274313), (91, 211010), (130, 147707), (182, 105505), (455, 42202), (910, 21101)]