678821

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 16

約数和(自身を含む): 822528

約数和(自身を除く): 143707

約数列:

[1, 11, 13, 47, 101, 143, 517, 611, 1111, 1313, 4747, 6721, 14443, 52217, 61711, 678821]

約数ペア:

[(1, 678821), (11, 61711), (13, 52217), (47, 14443), (101, 6721), (143, 4747), (517, 1313), (611, 1111)]