201212121649

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{12713}}^1\times {\mathrm{205549}}^1$

素因数の和:218280

約数の個数: 16

約数和(自身を含む): 250882819200

約数和(自身を除く): 49670697551

約数列:

[1, 7, 11, 77, 12713, 88991, 139843, 205549, 978901, 1438843, 2261039, 15827273, 2613144437, 18292011059, 28744588807, 201212121649]

約数ペア:

[(1, 201212121649), (7, 28744588807), (11, 18292011059), (77, 2613144437), (12713, 15827273), (88991, 2261039), (139843, 1438843), (205549, 978901)]