20456787

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1453}}^1$

素因数の和:1507

約数の個数: 24

約数和(自身を含む): 31022544

約数和(自身を除く): 10565757

約数列:

[1, 3, 13, 19, 39, 57, 247, 361, 741, 1083, 1453, 4359, 4693, 14079, 18889, 27607, 56667, 82821, 358891, 524533, 1076673, 1573599, 6818929, 20456787]

約数ペア:

[(1, 20456787), (3, 6818929), (13, 1573599), (19, 1076673), (39, 524533), (57, 358891), (247, 82821), (361, 56667), (741, 27607), (1083, 18889), (1453, 14079), (4359, 4693)]