20994677

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{311}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 25676352

約数和(自身を除く): 4681675

約数列:

[1, 11, 17, 19, 187, 209, 311, 323, 361, 3421, 3553, 3971, 5287, 5909, 6137, 58157, 64999, 67507, 100453, 112271, 1104983, 1234981, 1908607, 20994677]

約数ペア:

[(1, 20994677), (11, 1908607), (17, 1234981), (19, 1104983), (187, 112271), (209, 100453), (311, 67507), (323, 64999), (361, 58157), (3421, 6137), (3553, 5909), (3971, 5287)]