20666954

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2003}}^1$

素因数の和:2090

約数の個数: 32

約数和(自身を含む): 39246336

約数和(自身を除く): 18579382

約数列:

[1, 2, 7, 11, 14, 22, 67, 77, 134, 154, 469, 737, 938, 1474, 2003, 4006, 5159, 10318, 14021, 22033, 28042, 44066, 134201, 154231, 268402, 308462, 939407, 1476211, 1878814, 2952422, 10333477, 20666954]

約数ペア:

[(1, 20666954), (2, 10333477), (7, 2952422), (11, 1878814), (14, 1476211), (22, 939407), (67, 308462), (77, 268402), (134, 154231), (154, 134201), (469, 44066), (737, 28042), (938, 22033), (1474, 14021), (2003, 10318), (4006, 5159)]