21049367037

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{40153}}^1$

素因数の和:40733

約数の個数: 32

約数和(自身を含む): 31339393920

約数和(自身を除く): 10290026883

約数列:

[1, 3, 17, 19, 51, 57, 323, 541, 969, 1623, 9197, 10279, 27591, 30837, 40153, 120459, 174743, 524229, 682601, 762907, 2047803, 2288721, 12969419, 21722773, 38908257, 65168319, 369287141, 412732687, 1107861423, 1238198061, 7016455679, 21049367037]

約数ペア:

[(1, 21049367037), (3, 7016455679), (17, 1238198061), (19, 1107861423), (51, 412732687), (57, 369287141), (323, 65168319), (541, 38908257), (969, 21722773), (1623, 12969419), (9197, 2288721), (10279, 2047803), (27591, 762907), (30837, 682601), (40153, 524229), (120459, 174743)]