12639712

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{20789}}^1$

素因数の和:20818

約数の個数: 24

約数和(自身を含む): 26195400

約数和(自身を除く): 13555688

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 20789, 41578, 83156, 166312, 332624, 394991, 665248, 789982, 1579964, 3159928, 6319856, 12639712]

約数ペア:

[(1, 12639712), (2, 6319856), (4, 3159928), (8, 1579964), (16, 789982), (19, 665248), (32, 394991), (38, 332624), (76, 166312), (152, 83156), (304, 41578), (608, 20789)]