261608389

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{6779}}^1$

素因数の和:6972

約数の個数: 16

約数和(自身を含む): 309168000

約数和(自身を除く): 47559611

約数列:

[1, 7, 37, 149, 259, 1043, 5513, 6779, 38591, 47453, 250823, 1010071, 1755761, 7070497, 37372627, 261608389]

約数ペア:

[(1, 261608389), (7, 37372627), (37, 7070497), (149, 1755761), (259, 1010071), (1043, 250823), (5513, 47453), (6779, 38591)]