28042209

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2693}}^1$

素因数の和:2801

約数の個数: 24

約数和(自身を含む): 44127720

約数和(自身を除く): 16085511

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 2693, 3471, 8079, 10413, 24237, 35009, 105027, 239677, 315081, 719031, 2157093, 3115801, 9347403, 28042209]

約数ペア:

[(1, 28042209), (3, 9347403), (9, 3115801), (13, 2157093), (39, 719031), (89, 315081), (117, 239677), (267, 105027), (801, 35009), (1157, 24237), (2693, 10413), (3471, 8079)]