20319272

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61949}}^1$

素因数の和:61996

約数の個数: 16

約数和(自身を含む): 39028500

約数和(自身を除く): 18709228

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 61949, 123898, 247796, 495592, 2539909, 5079818, 10159636, 20319272]

約数ペア:

[(1, 20319272), (2, 10159636), (4, 5079818), (8, 2539909), (41, 495592), (82, 247796), (164, 123898), (328, 61949)]