20339121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 31259520

約数和(自身を除く): 10920399

約数列:

[1, 3, 11, 29, 33, 53, 87, 159, 319, 401, 583, 957, 1203, 1537, 1749, 4411, 4611, 11629, 13233, 16907, 21253, 34887, 50721, 63759, 127919, 233783, 383757, 616337, 701349, 1849011, 6779707, 20339121]

約数ペア:

[(1, 20339121), (3, 6779707), (11, 1849011), (29, 701349), (33, 616337), (53, 383757), (87, 233783), (159, 127919), (319, 63759), (401, 50721), (583, 34887), (957, 21253), (1203, 16907), (1537, 13233), (1749, 11629), (4411, 4611)]