21862775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{743}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 29890944

約数和(自身を除く): 8028169

約数列:

[1, 5, 11, 25, 55, 107, 275, 535, 743, 1177, 2675, 3715, 5885, 8173, 18575, 29425, 40865, 79501, 204325, 397505, 874511, 1987525, 4372555, 21862775]

約数ペア:

[(1, 21862775), (5, 4372555), (11, 1987525), (25, 874511), (55, 397505), (107, 204325), (275, 79501), (535, 40865), (743, 29425), (1177, 18575), (2675, 8173), (3715, 5885)]