1900381847

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{229487}}^1$

素因数の和:229527

約数の個数: 18

約数和(自身を含む): 2393789328

約数和(自身を除く): 493407481

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 229487, 1606409, 2983331, 11244863, 20883317, 38783303, 146183219, 271483121, 1900381847]

約数ペア:

[(1, 1900381847), (7, 271483121), (13, 146183219), (49, 38783303), (91, 20883317), (169, 11244863), (637, 2983331), (1183, 1606409), (8281, 229487)]