21081925130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{705317}}^1$

素因数の和:705399

約数の個数: 48

約数和(自身を含む): 44866688616

約数和(自身を除く): 23784763486

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945, 29890, 705317, 1410634, 3526585, 4937219, 7053170, 9874438, 24686095, 34560533, 43024337, 49372190, 69121066, 86048674, 172802665, 215121685, 301170359, 345605330, 430243370, 602340718, 1505851795, 2108192513, 3011703590, 4216385026, 10540962565, 21081925130]

約数ペア:

[(1, 21081925130), (2, 10540962565), (5, 4216385026), (7, 3011703590), (10, 2108192513), (14, 1505851795), (35, 602340718), (49, 430243370), (61, 345605330), (70, 301170359), (98, 215121685), (122, 172802665), (245, 86048674), (305, 69121066), (427, 49372190), (490, 43024337), (610, 34560533), (854, 24686095), (2135, 9874438), (2989, 7053170), (4270, 4937219), (5978, 3526585), (14945, 1410634), (29890, 705317)]