18699855

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 30855168

約数和(自身を除く): 12155313

約数列:

[1, 3, 5, 15, 61, 107, 183, 191, 305, 321, 535, 573, 915, 955, 1605, 2865, 6527, 11651, 19581, 20437, 32635, 34953, 58255, 61311, 97905, 102185, 174765, 306555, 1246657, 3739971, 6233285, 18699855]

約数ペア:

[(1, 18699855), (3, 6233285), (5, 3739971), (15, 1246657), (61, 306555), (107, 174765), (183, 102185), (191, 97905), (305, 61311), (321, 58255), (535, 34953), (573, 32635), (915, 20437), (955, 19581), (1605, 11651), (2865, 6527)]