18986478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10513}}^1$

素因数の和:10568

約数の個数: 32

約数和(自身を含む): 44411136

約数和(自身を除く): 25424658

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 10513, 21026, 31539, 63078, 73591, 147182, 220773, 441546, 452059, 904118, 1356177, 2712354, 3164413, 6328826, 9493239, 18986478]

約数ペア:

[(1, 18986478), (2, 9493239), (3, 6328826), (6, 3164413), (7, 2712354), (14, 1356177), (21, 904118), (42, 452059), (43, 441546), (86, 220773), (129, 147182), (258, 73591), (301, 63078), (602, 31539), (903, 21026), (1806, 10513)]