18712827

素因数分解:

$3^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{937}}^1$

素因数の和:1267

約数の個数: 24

約数和(自身を含む): 31021536

約数和(自身を除く): 12308709

約数列:

[1, 3, 7, 9, 21, 63, 317, 937, 951, 2219, 2811, 2853, 6559, 6657, 8433, 19677, 19971, 59031, 297029, 891087, 2079203, 2673261, 6237609, 18712827]

約数ペア:

[(1, 18712827), (3, 6237609), (7, 2673261), (9, 2079203), (21, 891087), (63, 297029), (317, 59031), (937, 19971), (951, 19677), (2219, 8433), (2811, 6657), (2853, 6559)]