28712159

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{443}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 33758208

約数和(自身を除く): 5046049

約数列:

[1, 7, 47, 197, 329, 443, 1379, 3101, 9259, 20821, 64813, 87271, 145747, 610897, 4101737, 28712159]

約数ペア:

[(1, 28712159), (7, 4101737), (47, 610897), (197, 145747), (329, 87271), (443, 64813), (1379, 20821), (3101, 9259)]