19207713

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11205087

約数列:

[1, 3, 7, 21, 43, 89, 129, 239, 267, 301, 623, 717, 903, 1673, 1869, 3827, 5019, 10277, 11481, 21271, 26789, 30831, 63813, 71939, 80367, 148897, 215817, 446691, 914653, 2743959, 6402571, 19207713]

約数ペア:

[(1, 19207713), (3, 6402571), (7, 2743959), (21, 914653), (43, 446691), (89, 215817), (129, 148897), (239, 80367), (267, 71939), (301, 63813), (623, 30831), (717, 26789), (903, 21271), (1673, 11481), (1869, 10277), (3827, 5019)]