20856262

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 40055040

約数和(自身を除く): 19198778

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 49, 98, 133, 161, 266, 322, 437, 487, 874, 931, 974, 1127, 1862, 2254, 3059, 3409, 6118, 6818, 9253, 11201, 18506, 21413, 22402, 23863, 42826, 47726, 64771, 78407, 129542, 156814, 212819, 425638, 453397, 548849, 906794, 1097698, 1489733, 2979466, 10428131, 20856262]

約数ペア:

[(1, 20856262), (2, 10428131), (7, 2979466), (14, 1489733), (19, 1097698), (23, 906794), (38, 548849), (46, 453397), (49, 425638), (98, 212819), (133, 156814), (161, 129542), (266, 78407), (322, 64771), (437, 47726), (487, 42826), (874, 23863), (931, 22402), (974, 21413), (1127, 18506), (1862, 11201), (2254, 9253), (3059, 6818), (3409, 6118)]