12721219

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2017}}^1$

素因数の和:2094

約数の個数: 16

約数和(自身を含む): 15691968

約数和(自身を除く): 2970749

約数列:

[1, 7, 17, 53, 119, 371, 901, 2017, 6307, 14119, 34289, 106901, 240023, 748307, 1817317, 12721219]

約数ペア:

[(1, 12721219), (7, 1817317), (17, 748307), (53, 240023), (119, 106901), (371, 34289), (901, 14119), (2017, 6307)]