389664478

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{212467}}^1$

素因数の和:212607

約数の個数: 16

約数和(自身を含む): 673098624

約数和(自身を除く): 283434146

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 212467, 424934, 1487269, 2974538, 27833177, 55666354, 194832239, 389664478]

約数ペア:

[(1, 389664478), (2, 194832239), (7, 55666354), (14, 27833177), (131, 2974538), (262, 1487269), (917, 424934), (1834, 212467)]