18684855

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2579}}^1$

素因数の和:2620

約数の個数: 48

約数和(自身を含む): 38638080

約数和(自身を除く): 19953225

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 2579, 7245, 7737, 12895, 18053, 23211, 38685, 54159, 59317, 90265, 116055, 162477, 177951, 270795, 296585, 415219, 533853, 812385, 889755, 1245657, 2076095, 2669265, 3736971, 6228285, 18684855]

約数ペア:

[(1, 18684855), (3, 6228285), (5, 3736971), (7, 2669265), (9, 2076095), (15, 1245657), (21, 889755), (23, 812385), (35, 533853), (45, 415219), (63, 296585), (69, 270795), (105, 177951), (115, 162477), (161, 116055), (207, 90265), (315, 59317), (345, 54159), (483, 38685), (805, 23211), (1035, 18053), (1449, 12895), (2415, 7737), (2579, 7245)]