87918397

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 107557632

約数和(自身を除く): 19639235

約数列:

[1, 7, 23, 49, 161, 181, 431, 1127, 1267, 3017, 4163, 8869, 9913, 21119, 29141, 69391, 78011, 203987, 485737, 546077, 1794253, 3822539, 12559771, 87918397]

約数ペア:

[(1, 87918397), (7, 12559771), (23, 3822539), (49, 1794253), (161, 546077), (181, 485737), (431, 203987), (1127, 78011), (1267, 69391), (3017, 29141), (4163, 21119), (8869, 9913)]