12940653

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20639}}^1$

素因数の和:20672

約数の個数: 16

約数和(自身を含む): 19814400

約数和(自身を除く): 6873747

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 20639, 61917, 227029, 392141, 681087, 1176423, 4313551, 12940653]

約数ペア:

[(1, 12940653), (3, 4313551), (11, 1176423), (19, 681087), (33, 392141), (57, 227029), (209, 61917), (627, 20639)]