19882317

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1087}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 33144832

約数和(自身を除く): 13262515

約数列:

[1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1087, 1407, 2613, 3261, 6097, 7609, 14131, 18291, 22827, 42393, 72829, 98917, 218487, 296751, 509803, 946777, 1529409, 2840331, 6627439, 19882317]

約数ペア:

[(1, 19882317), (3, 6627439), (7, 2840331), (13, 1529409), (21, 946777), (39, 509803), (67, 296751), (91, 218487), (201, 98917), (273, 72829), (469, 42393), (871, 22827), (1087, 18291), (1407, 14131), (2613, 7609), (3261, 6097)]