199955987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{42571}}^1$

素因数の和:42650

約数の個数: 16

約数和(自身を含む): 253388544

約数和(自身を除く): 53432557

約数列:

[1, 7, 11, 61, 77, 427, 671, 4697, 42571, 297997, 468281, 2596831, 3277967, 18177817, 28565141, 199955987]

約数ペア:

[(1, 199955987), (7, 28565141), (11, 18177817), (61, 3277967), (77, 2596831), (427, 468281), (671, 297997), (4697, 42571)]