20180649

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1471}}^1$

素因数の和:1760

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 8435031

約数列:

[1, 3, 17, 51, 269, 807, 1471, 4413, 4573, 13719, 25007, 75021, 395699, 1187097, 6726883, 20180649]

約数ペア:

[(1, 20180649), (3, 6726883), (17, 1187097), (51, 395699), (269, 75021), (807, 25007), (1471, 13719), (4413, 4573)]