25299393

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 40934400

約数和(自身を除く): 15635007

約数列:

[1, 3, 7, 19, 21, 57, 133, 163, 389, 399, 489, 1141, 1167, 2723, 3097, 3423, 7391, 8169, 9291, 21679, 22173, 51737, 63407, 65037, 155211, 190221, 443849, 1204733, 1331547, 3614199, 8433131, 25299393]

約数ペア:

[(1, 25299393), (3, 8433131), (7, 3614199), (19, 1331547), (21, 1204733), (57, 443849), (133, 190221), (163, 155211), (389, 65037), (399, 63407), (489, 51737), (1141, 22173), (1167, 21679), (2723, 9291), (3097, 8169), (3423, 7391)]