18370611

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 32417280

約数和(自身を除く): 14046669

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 71, 111, 189, 213, 259, 333, 497, 639, 777, 999, 1369, 1491, 1917, 2331, 2627, 4107, 4473, 6993, 7881, 9583, 12321, 13419, 18389, 23643, 28749, 36963, 55167, 70929, 86247, 97199, 165501, 258741, 291597, 496503, 680393, 874791, 2041179, 2624373, 6123537, 18370611]

約数ペア:

[(1, 18370611), (3, 6123537), (7, 2624373), (9, 2041179), (21, 874791), (27, 680393), (37, 496503), (63, 291597), (71, 258741), (111, 165501), (189, 97199), (213, 86247), (259, 70929), (333, 55167), (497, 36963), (639, 28749), (777, 23643), (999, 18389), (1369, 13419), (1491, 12321), (1917, 9583), (2331, 7881), (2627, 6993), (4107, 4473)]