19580918

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{367}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 34904064

約数和(自身を除く): 15323146

約数列:

[1, 2, 7, 14, 37, 74, 103, 206, 259, 367, 518, 721, 734, 1442, 2569, 3811, 5138, 7622, 13579, 26677, 27158, 37801, 53354, 75602, 95053, 190106, 264607, 529214, 1398637, 2797274, 9790459, 19580918]

約数ペア:

[(1, 19580918), (2, 9790459), (7, 2797274), (14, 1398637), (37, 529214), (74, 264607), (103, 190106), (206, 95053), (259, 75602), (367, 53354), (518, 37801), (721, 27158), (734, 26677), (1442, 13579), (2569, 7622), (3811, 5138)]