15990777

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 40

約数和(自身を含む): 26449632

約数和(自身を除く): 10458855

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 131, 137, 297, 393, 411, 891, 1179, 1233, 1441, 1507, 3537, 3699, 4323, 4521, 10611, 11097, 12969, 13563, 17947, 38907, 40689, 53841, 116721, 122067, 161523, 197417, 484569, 592251, 1453707, 1776753, 5330259, 15990777]

約数ペア:

[(1, 15990777), (3, 5330259), (9, 1776753), (11, 1453707), (27, 592251), (33, 484569), (81, 197417), (99, 161523), (131, 122067), (137, 116721), (297, 53841), (393, 40689), (411, 38907), (891, 17947), (1179, 13563), (1233, 12969), (1441, 11097), (1507, 10611), (3537, 4521), (3699, 4323)]