21155398045

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1049}}^1\times {\mathrm{5657}}^1$

素因数の和:6765

約数の個数: 32

約数和(自身を含む): 27375667200

約数和(自身を除く): 6220269155

約数列:

[1, 5, 23, 31, 115, 155, 713, 1049, 3565, 5245, 5657, 24127, 28285, 32519, 120635, 130111, 162595, 175367, 650555, 747937, 876835, 3739685, 4033441, 5934193, 20167205, 29670965, 136486439, 183959983, 682432195, 919799915, 4231079609, 21155398045]

約数ペア:

[(1, 21155398045), (5, 4231079609), (23, 919799915), (31, 682432195), (115, 183959983), (155, 136486439), (713, 29670965), (1049, 20167205), (3565, 5934193), (5245, 4033441), (5657, 3739685), (24127, 876835), (28285, 747937), (32519, 650555), (120635, 175367), (130111, 162595)]