68779921

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1\times {\mathrm{401}}^1$

素因数の和:744

約数の個数: 16

約数和(自身を含む): 79885440

約数和(自身を除く): 11105519

約数列:

[1, 7, 107, 229, 401, 749, 1603, 2807, 24503, 42907, 91829, 171521, 300349, 642803, 9825703, 68779921]

約数ペア:

[(1, 68779921), (7, 9825703), (107, 642803), (229, 300349), (401, 171521), (749, 91829), (1603, 42907), (2807, 24503)]