72138143

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^3$

素因数の和:105

約数の個数: 36

約数和(自身を含む): 96430320

約数和(自身を除く): 24292177

約数列:

[1, 7, 11, 23, 49, 77, 121, 161, 253, 529, 539, 847, 1127, 1771, 2783, 3703, 5819, 5929, 12167, 12397, 19481, 25921, 40733, 64009, 85169, 133837, 136367, 285131, 448063, 596183, 936859, 1472207, 3136441, 6558013, 10305449, 72138143]

約数ペア:

[(1, 72138143), (7, 10305449), (11, 6558013), (23, 3136441), (49, 1472207), (77, 936859), (121, 596183), (161, 448063), (253, 285131), (529, 136367), (539, 133837), (847, 85169), (1127, 64009), (1771, 40733), (2783, 25921), (3703, 19481), (5819, 12397), (5929, 12167)]