18525826

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2069}}^1$

素因数の和:2130

約数の個数: 24

約数和(自身を含む): 31385340

約数和(自身を除く): 12859514

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2069, 4138, 4477, 8954, 22759, 45518, 76553, 153106, 250349, 500698, 842083, 1684166, 9262913, 18525826]

約数ペア:

[(1, 18525826), (2, 9262913), (11, 1684166), (22, 842083), (37, 500698), (74, 250349), (121, 153106), (242, 76553), (407, 45518), (814, 22759), (2069, 8954), (4138, 4477)]