28474815

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 47114496

約数和(自身を除く): 18639681

約数列:

[1, 3, 5, 15, 43, 129, 131, 215, 337, 393, 645, 655, 1011, 1685, 1965, 5055, 5633, 14491, 16899, 28165, 43473, 44147, 72455, 84495, 132441, 217365, 220735, 662205, 1898321, 5694963, 9491605, 28474815]

約数ペア:

[(1, 28474815), (3, 9491605), (5, 5694963), (15, 1898321), (43, 662205), (129, 220735), (131, 217365), (215, 132441), (337, 84495), (393, 72455), (645, 44147), (655, 43473), (1011, 28165), (1685, 16899), (1965, 14491), (5055, 5633)]