27777735

素因数分解:

$3^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:765

約数の個数: 40

約数和(自身を含む): 50337936

約数和(自身を除く): 22560201

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 107, 135, 321, 405, 535, 641, 963, 1605, 1923, 2889, 3205, 4815, 5769, 8667, 9615, 14445, 17307, 28845, 43335, 51921, 68587, 86535, 205761, 259605, 342935, 617283, 1028805, 1851849, 3086415, 5555547, 9259245, 27777735]

約数ペア:

[(1, 27777735), (3, 9259245), (5, 5555547), (9, 3086415), (15, 1851849), (27, 1028805), (45, 617283), (81, 342935), (107, 259605), (135, 205761), (321, 86535), (405, 68587), (535, 51921), (641, 43335), (963, 28845), (1605, 17307), (1923, 14445), (2889, 9615), (3205, 8667), (4815, 5769)]