128965893

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{51607}}^1$

素因数の和:51641

約数の個数: 24

約数和(自身を含む): 211799232

約数和(自身を除く): 82833339

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 51607, 154821, 361249, 877319, 1083747, 2528743, 2631957, 6141233, 7586229, 18423699, 42988631, 128965893]

約数ペア:

[(1, 128965893), (3, 42988631), (7, 18423699), (17, 7586229), (21, 6141233), (49, 2631957), (51, 2528743), (119, 1083747), (147, 877319), (357, 361249), (833, 154821), (2499, 51607)]