81697406

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{22531}}^1$

素因数の和:22584

約数の個数: 24

約数和(自身を含む): 146412936

約数和(自身を除く): 64715530

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 22531, 45062, 157717, 315434, 833647, 1104019, 1667294, 2208038, 5835529, 11671058, 40848703, 81697406]

約数ペア:

[(1, 81697406), (2, 40848703), (7, 11671058), (14, 5835529), (37, 2208038), (49, 1667294), (74, 1104019), (98, 833647), (259, 315434), (518, 157717), (1813, 45062), (3626, 22531)]