12816819

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{20639}}^1$

素因数の和:20671

約数の個数: 16

約数和(自身を含む): 19814400

約数和(自身を除く): 6997581

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 20639, 61917, 185751, 474697, 557253, 1424091, 4272273, 12816819]

約数ペア:

[(1, 12816819), (3, 4272273), (9, 1424091), (23, 557253), (27, 474697), (69, 185751), (207, 61917), (621, 20639)]