18873608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1049}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 38367000

約数和(自身を除く): 19493392

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1049, 1384, 2098, 2249, 4196, 4498, 8392, 8996, 13637, 17992, 27274, 54548, 109096, 181477, 362954, 725908, 1451816, 2359201, 4718402, 9436804, 18873608]

約数ペア:

[(1, 18873608), (2, 9436804), (4, 4718402), (8, 2359201), (13, 1451816), (26, 725908), (52, 362954), (104, 181477), (173, 109096), (346, 54548), (692, 27274), (1049, 17992), (1384, 13637), (2098, 8996), (2249, 8392), (4196, 4498)]