16659475

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4179

約数の個数: 24

約数和(自身を含む): 24641280

約数和(自身を除く): 7981805

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 4139, 20695, 28973, 95197, 103475, 144865, 475985, 666379, 724325, 2379925, 3331895, 16659475]

約数ペア:

[(1, 16659475), (5, 3331895), (7, 2379925), (23, 724325), (25, 666379), (35, 475985), (115, 144865), (161, 103475), (175, 95197), (575, 28973), (805, 20695), (4025, 4139)]