31751271

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5521}}^1$

素因数の和:5604

約数の個数: 20

約数和(自身を含む): 48107664

約数和(自身を除く): 16356393

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5521, 5751, 16563, 49689, 149067, 391991, 447201, 1175973, 3527919, 10583757, 31751271]

約数ペア:

[(1, 31751271), (3, 10583757), (9, 3527919), (27, 1175973), (71, 447201), (81, 391991), (213, 149067), (639, 49689), (1917, 16563), (5521, 5751)]