21139960557

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1811}}^1\times {\mathrm{204791}}^1$

素因数の和:206624

約数の個数: 16

約数和(自身を含む): 29686648320

約数和(自身を除く): 8546687763

約数列:

[1, 3, 19, 57, 1811, 5433, 34409, 103227, 204791, 614373, 3891029, 11673087, 370876501, 1112629503, 7046653519, 21139960557]

約数ペア:

[(1, 21139960557), (3, 7046653519), (19, 1112629503), (57, 370876501), (1811, 11673087), (5433, 3891029), (34409, 614373), (103227, 204791)]