18681243

素因数分解:

$3^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{3307}}^1$

素因数の和:3586

約数の個数: 16

約数和(自身を含む): 28581120

約数和(自身を除く): 9899877

約数列:

[1, 3, 7, 21, 269, 807, 1883, 3307, 5649, 9921, 23149, 69447, 889583, 2668749, 6227081, 18681243]

約数ペア:

[(1, 18681243), (3, 6227081), (7, 2668749), (21, 889583), (269, 69447), (807, 23149), (1883, 9921), (3307, 5649)]