28737863

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 36

約数和(自身を含む): 38026296

約数和(自身を除く): 9288433

約数列:

[1, 7, 11, 37, 49, 77, 121, 131, 259, 407, 539, 847, 917, 1441, 1813, 2849, 4477, 4847, 5929, 6419, 10087, 15851, 19943, 31339, 33929, 53317, 70609, 110957, 219373, 237503, 373219, 586487, 776699, 2612533, 4105409, 28737863]

約数ペア:

[(1, 28737863), (7, 4105409), (11, 2612533), (37, 776699), (49, 586487), (77, 373219), (121, 237503), (131, 219373), (259, 110957), (407, 70609), (539, 53317), (847, 33929), (917, 31339), (1441, 19943), (1813, 15851), (2849, 10087), (4477, 6419), (4847, 5929)]