21152065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{727}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 28986048

約数和(自身を除く): 7833983

約数列:

[1, 5, 11, 23, 55, 115, 253, 529, 727, 1265, 2645, 3635, 5819, 7997, 16721, 29095, 39985, 83605, 183931, 384583, 919655, 1922915, 4230413, 21152065]

約数ペア:

[(1, 21152065), (5, 4230413), (11, 1922915), (23, 919655), (55, 384583), (115, 183931), (253, 83605), (529, 39985), (727, 29095), (1265, 16721), (2645, 7997), (3635, 5819)]