721121401

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 989094400

約数和(自身を除く): 267972999

約数列:

[1, 7, 11, 13, 77, 79, 91, 121, 143, 553, 829, 847, 869, 1001, 1027, 1573, 5803, 6083, 7189, 9119, 9559, 10777, 11011, 11297, 63833, 65491, 66913, 75439, 79079, 100309, 118547, 124267, 458437, 702163, 720401, 829829, 851383, 869869, 1304017, 5042807, 5959681, 7924411, 9128119, 9365213, 55470877, 65556491, 103017343, 721121401]

約数ペア:

[(1, 721121401), (7, 103017343), (11, 65556491), (13, 55470877), (77, 9365213), (79, 9128119), (91, 7924411), (121, 5959681), (143, 5042807), (553, 1304017), (829, 869869), (847, 851383), (869, 829829), (1001, 720401), (1027, 702163), (1573, 458437), (5803, 124267), (6083, 118547), (7189, 100309), (9119, 79079), (9559, 75439), (10777, 66913), (11011, 65491), (11297, 63833)]