21362271

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 34180608

約数和(自身を除く): 12818337

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 577, 861, 903, 1731, 1763, 4039, 5289, 12117, 12341, 23657, 24811, 37023, 70971, 74433, 165599, 173677, 496797, 521031, 1017251, 3051753, 7120757, 21362271]

約数ペア:

[(1, 21362271), (3, 7120757), (7, 3051753), (21, 1017251), (41, 521031), (43, 496797), (123, 173677), (129, 165599), (287, 74433), (301, 70971), (577, 37023), (861, 24811), (903, 23657), (1731, 12341), (1763, 12117), (4039, 5289)]