123899215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{21871}}^1$

素因数の和:21990

約数の個数: 16

約数和(自身を含む): 163777536

約数和(自身を除く): 39878321

約数列:

[1, 5, 11, 55, 103, 515, 1133, 5665, 21871, 109355, 240581, 1202905, 2252713, 11263565, 24779843, 123899215]

約数ペア:

[(1, 123899215), (5, 24779843), (11, 11263565), (55, 2252713), (103, 1202905), (515, 240581), (1133, 109355), (5665, 21871)]