20736164449

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{559877}}^1$

素因数の和:559945

約数の個数: 32

約数和(自身を含む): 28594089216

約数和(自身を除く): 7857924767

約数列:

[1, 7, 11, 13, 37, 77, 91, 143, 259, 407, 481, 1001, 2849, 3367, 5291, 37037, 559877, 3919139, 6158647, 7278401, 20715449, 43110529, 50948807, 80062411, 145008143, 227869939, 269300837, 560436877, 1595089573, 1885105859, 2962309207, 20736164449]

約数ペア:

[(1, 20736164449), (7, 2962309207), (11, 1885105859), (13, 1595089573), (37, 560436877), (77, 269300837), (91, 227869939), (143, 145008143), (259, 80062411), (407, 50948807), (481, 43110529), (1001, 20715449), (2849, 7278401), (3367, 6158647), (5291, 3919139), (37037, 559877)]