21781773

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2243}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 34306272

約数和(自身を除く): 12524499

約数列:

[1, 3, 9, 13, 39, 83, 117, 249, 747, 1079, 2243, 3237, 6729, 9711, 20187, 29159, 87477, 186169, 262431, 558507, 1675521, 2420197, 7260591, 21781773]

約数ペア:

[(1, 21781773), (3, 7260591), (9, 2420197), (13, 1675521), (39, 558507), (83, 262431), (117, 186169), (249, 87477), (747, 29159), (1079, 20187), (2243, 9711), (3237, 6729)]