15211315

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1321}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 21701952

約数和(自身を除く): 6490637

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1321, 1645, 2303, 6605, 9247, 11515, 46235, 62087, 64729, 310435, 323645, 434609, 2173045, 3042263, 15211315]

約数ペア:

[(1, 15211315), (5, 3042263), (7, 2173045), (35, 434609), (47, 323645), (49, 310435), (235, 64729), (245, 62087), (329, 46235), (1321, 11515), (1645, 9247), (2303, 6605)]