21601286

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19531}}^1$

素因数の和:19619

約数の個数: 16

約数和(自身を含む): 37501440

約数和(自身を除く): 15900154

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19531, 39062, 136717, 273434, 1542949, 3085898, 10800643, 21601286]

約数ペア:

[(1, 21601286), (2, 10800643), (7, 3085898), (14, 1542949), (79, 273434), (158, 136717), (553, 39062), (1106, 19531)]