13380009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 19768320

約数和(自身を除く): 6388311

約数列:

[1, 3, 19, 43, 53, 57, 103, 129, 159, 309, 817, 1007, 1957, 2279, 2451, 3021, 4429, 5459, 5871, 6837, 13287, 16377, 43301, 84151, 103721, 129903, 234737, 252453, 311163, 704211, 4460003, 13380009]

約数ペア:

[(1, 13380009), (3, 4460003), (19, 704211), (43, 311163), (53, 252453), (57, 234737), (103, 129903), (129, 103721), (159, 84151), (309, 43301), (817, 16377), (1007, 13287), (1957, 6837), (2279, 5871), (2451, 5459), (3021, 4429)]