18684237

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 29635200

約数和(自身を除く): 10950963

約数列:

[1, 3, 11, 13, 33, 39, 97, 143, 291, 429, 449, 1067, 1261, 1347, 3201, 3783, 4939, 5837, 13871, 14817, 17511, 41613, 43553, 64207, 130659, 192621, 479083, 566189, 1437249, 1698567, 6228079, 18684237]

約数ペア:

[(1, 18684237), (3, 6228079), (11, 1698567), (13, 1437249), (33, 566189), (39, 479083), (97, 192621), (143, 130659), (291, 64207), (429, 43553), (449, 41613), (1067, 17511), (1261, 14817), (1347, 13871), (3201, 5837), (3783, 4939)]