201019819

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{491}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 271111680

約数和(自身を除く): 70091861

約数列:

[1, 7, 11, 13, 77, 91, 143, 409, 491, 1001, 2863, 3437, 4499, 5317, 5401, 6383, 31493, 37219, 37807, 44681, 58487, 70213, 200819, 409409, 491491, 1405733, 2209009, 2610647, 15463063, 18274529, 28717117, 201019819]

約数ペア:

[(1, 201019819), (7, 28717117), (11, 18274529), (13, 15463063), (77, 2610647), (91, 2209009), (143, 1405733), (409, 491491), (491, 409409), (1001, 200819), (2863, 70213), (3437, 58487), (4499, 44681), (5317, 37807), (5401, 37219), (6383, 31493)]