201390987

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{521}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 312698880

約数和(自身を除く): 111307893

約数列:

[1, 3, 7, 21, 79, 233, 237, 521, 553, 699, 1563, 1631, 1659, 3647, 4893, 10941, 18407, 41159, 55221, 121393, 123477, 128849, 288113, 364179, 386547, 849751, 864339, 2549253, 9590047, 28770141, 67130329, 201390987]

約数ペア:

[(1, 201390987), (3, 67130329), (7, 28770141), (21, 9590047), (79, 2549253), (233, 864339), (237, 849751), (521, 386547), (553, 364179), (699, 288113), (1563, 128849), (1631, 123477), (1659, 121393), (3647, 55221), (4893, 41159), (10941, 18407)]