81021772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{16063}}^1$

素因数の和:16177

約数の個数: 24

約数和(自身を含む): 154278656

約数和(自身を除く): 73256884

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 5044, 16063, 32126, 64252, 208819, 417638, 835276, 1558111, 3116222, 6232444, 20255443, 40510886, 81021772]

約数ペア:

[(1, 81021772), (2, 40510886), (4, 20255443), (13, 6232444), (26, 3116222), (52, 1558111), (97, 835276), (194, 417638), (388, 208819), (1261, 64252), (2522, 32126), (5044, 16063)]