247989441

素因数分解:

$3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{16703}}^1$

素因数の和:16821

約数の個数: 24

約数和(自身を含む): 388468224

約数和(自身を除く): 140478783

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 707, 2121, 4949, 14847, 16703, 50109, 116921, 350763, 818447, 1687003, 2455341, 5061009, 11809021, 35427063, 82663147, 247989441]

約数ペア:

[(1, 247989441), (3, 82663147), (7, 35427063), (21, 11809021), (49, 5061009), (101, 2455341), (147, 1687003), (303, 818447), (707, 350763), (2121, 116921), (4949, 50109), (14847, 16703)]