20658616

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1297}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 42522480

約数和(自身を除く): 21863864

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 181, 362, 724, 1297, 1448, 1991, 2594, 3982, 5188, 7964, 10376, 14267, 15928, 28534, 57068, 114136, 234757, 469514, 939028, 1878056, 2582327, 5164654, 10329308, 20658616]

約数ペア:

[(1, 20658616), (2, 10329308), (4, 5164654), (8, 2582327), (11, 1878056), (22, 939028), (44, 469514), (88, 234757), (181, 114136), (362, 57068), (724, 28534), (1297, 15928), (1448, 14267), (1991, 10376), (2594, 7964), (3982, 5188)]