25493307

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 41233920

約数和(自身を除く): 15740613

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 353, 399, 543, 1059, 1267, 2471, 3439, 3801, 6707, 7413, 10317, 20121, 24073, 46949, 63893, 72219, 140847, 191679, 447251, 1213967, 1341753, 3641901, 8497769, 25493307]

約数ペア:

[(1, 25493307), (3, 8497769), (7, 3641901), (19, 1341753), (21, 1213967), (57, 447251), (133, 191679), (181, 140847), (353, 72219), (399, 63893), (543, 46949), (1059, 24073), (1267, 20121), (2471, 10317), (3439, 7413), (3801, 6707)]