168993909

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{12713}}^1$

素因数の和:12937

約数の個数: 24

約数和(自身を含む): 280318272

約数和(自身を除く): 111324363

約数列:

[1, 3, 7, 9, 21, 63, 211, 633, 1477, 1899, 4431, 12713, 13293, 38139, 88991, 114417, 266973, 800919, 2682443, 8047329, 18777101, 24141987, 56331303, 168993909]

約数ペア:

[(1, 168993909), (3, 56331303), (7, 24141987), (9, 18777101), (21, 8047329), (63, 2682443), (211, 800919), (633, 266973), (1477, 114417), (1899, 88991), (4431, 38139), (12713, 13293)]