19747910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21701}}^1$

素因数の和:21728

約数の個数: 32

約数和(自身を含む): 43751232

約数和(自身を除く): 24003322

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 21701, 43402, 108505, 151907, 217010, 282113, 303814, 564226, 759535, 1410565, 1519070, 1974791, 2821130, 3949582, 9873955, 19747910]

約数ペア:

[(1, 19747910), (2, 9873955), (5, 3949582), (7, 2821130), (10, 1974791), (13, 1519070), (14, 1410565), (26, 759535), (35, 564226), (65, 303814), (70, 282113), (91, 217010), (130, 151907), (182, 108505), (455, 43402), (910, 21701)]