18915273

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{601}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 29582280

約数和(自身を除く): 10667007

約数列:

[1, 3, 9, 13, 39, 117, 269, 601, 807, 1803, 2421, 3497, 5409, 7813, 10491, 23439, 31473, 70317, 161669, 485007, 1455021, 2101697, 6305091, 18915273]

約数ペア:

[(1, 18915273), (3, 6305091), (9, 2101697), (13, 1455021), (39, 485007), (117, 161669), (269, 70317), (601, 31473), (807, 23439), (1803, 10491), (2421, 7813), (3497, 5409)]