18843951

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 29767680

約数和(自身を除く): 10923729

約数列:

[1, 3, 7, 21, 59, 67, 177, 201, 227, 413, 469, 681, 1239, 1407, 1589, 3953, 4767, 11859, 13393, 15209, 27671, 40179, 45627, 83013, 93751, 106463, 281253, 319389, 897331, 2691993, 6281317, 18843951]

約数ペア:

[(1, 18843951), (3, 6281317), (7, 2691993), (21, 897331), (59, 319389), (67, 281253), (177, 106463), (201, 93751), (227, 83013), (413, 45627), (469, 40179), (681, 27671), (1239, 15209), (1407, 13393), (1589, 11859), (3953, 4767)]