138777331

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{3407}}^1$

素因数の和:3471

約数の個数: 24

約数和(自身を含む): 180923904

約数和(自身を除く): 42146573

約数列:

[1, 7, 11, 23, 77, 161, 253, 529, 1771, 3407, 3703, 5819, 23849, 37477, 40733, 78361, 262339, 548527, 861971, 1802303, 6033797, 12616121, 19825333, 138777331]

約数ペア:

[(1, 138777331), (7, 19825333), (11, 12616121), (23, 6033797), (77, 1802303), (161, 861971), (253, 548527), (529, 262339), (1771, 78361), (3407, 40733), (3703, 37477), (5819, 23849)]