20641486

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 34227360

約数和(自身を除く): 13585874

約数列:

[1, 2, 19, 37, 38, 53, 74, 106, 277, 554, 703, 1007, 1406, 1961, 2014, 3922, 5263, 10249, 10526, 14681, 20498, 29362, 37259, 74518, 194731, 278939, 389462, 543197, 557878, 1086394, 10320743, 20641486]

約数ペア:

[(1, 20641486), (2, 10320743), (19, 1086394), (37, 557878), (38, 543197), (53, 389462), (74, 278939), (106, 194731), (277, 74518), (554, 37259), (703, 29362), (1007, 20498), (1406, 14681), (1961, 10526), (2014, 10249), (3922, 5263)]