18857355

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4969}}^1$

素因数の和:5011

約数の個数: 32

約数和(自身を含む): 34352640

約数和(自身を除く): 15495285

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 4969, 14907, 24845, 54659, 74535, 114287, 163977, 273295, 342861, 571435, 819885, 1257157, 1714305, 3771471, 6285785, 18857355]

約数ペア:

[(1, 18857355), (3, 6285785), (5, 3771471), (11, 1714305), (15, 1257157), (23, 819885), (33, 571435), (55, 342861), (69, 273295), (115, 163977), (165, 114287), (253, 74535), (345, 54659), (759, 24845), (1265, 14907), (3795, 4969)]