201821249

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{216779}}^1$

素因数の和:216812

約数の個数: 12

約数和(自身を含む): 247129200

約数和(自身を除く): 45307951

約数列:

[1, 7, 19, 49, 133, 931, 216779, 1517453, 4118801, 10622171, 28831607, 201821249]

約数ペア:

[(1, 201821249), (7, 28831607), (19, 10622171), (49, 4118801), (133, 1517453), (931, 216779)]