18745265

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 9559375

約数列:

[1, 5, 7, 11, 35, 55, 77, 181, 269, 385, 905, 1267, 1345, 1883, 1991, 2959, 6335, 9415, 9955, 13937, 14795, 20713, 48689, 69685, 103565, 243445, 340823, 535579, 1704115, 2677895, 3749053, 18745265]

約数ペア:

[(1, 18745265), (5, 3749053), (7, 2677895), (11, 1704115), (35, 535579), (55, 340823), (77, 243445), (181, 103565), (269, 69685), (385, 48689), (905, 20713), (1267, 14795), (1345, 13937), (1883, 9955), (1991, 9415), (2959, 6335)]