9978993

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 15215616

約数和(自身を除く): 5236623

約数列:

[1, 3, 9, 31, 47, 93, 141, 279, 423, 761, 1457, 2283, 4371, 6849, 13113, 23591, 35767, 70773, 107301, 212319, 321903, 1108777, 3326331, 9978993]

約数ペア:

[(1, 9978993), (3, 3326331), (9, 1108777), (31, 321903), (47, 212319), (93, 107301), (141, 70773), (279, 35767), (423, 23591), (761, 13113), (1457, 6849), (2283, 4371)]