20945277

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{40829}}^1$

素因数の和:40857

約数の個数: 16

約数和(自身を含む): 32664000

約数和(自身を除く): 11718723

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 40829, 122487, 367461, 775751, 1102383, 2327253, 6981759, 20945277]

約数ペア:

[(1, 20945277), (3, 6981759), (9, 2327253), (19, 1102383), (27, 775751), (57, 367461), (171, 122487), (513, 40829)]