20727765

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8081}}^1$

素因数の和:8114

約数の個数: 32

約数和(自身を含む): 38793600

約数和(自身を除く): 18065835

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8081, 24243, 40405, 72729, 121215, 153539, 218187, 363645, 460617, 767695, 1090935, 1381851, 2303085, 4145553, 6909255, 20727765]

約数ペア:

[(1, 20727765), (3, 6909255), (5, 4145553), (9, 2303085), (15, 1381851), (19, 1090935), (27, 767695), (45, 460617), (57, 363645), (95, 218187), (135, 153539), (171, 121215), (285, 72729), (513, 40405), (855, 24243), (2565, 8081)]