13071981

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 21081600

約数和(自身を除く): 8009619

約数列:

[1, 3, 13, 19, 23, 39, 57, 59, 69, 169, 177, 247, 299, 437, 507, 741, 767, 897, 1121, 1311, 1357, 2301, 3211, 3363, 3887, 4071, 5681, 9633, 9971, 11661, 14573, 17043, 17641, 25783, 29913, 43719, 52923, 73853, 77349, 189449, 221559, 229333, 335179, 568347, 687999, 1005537, 4357327, 13071981]

約数ペア:

[(1, 13071981), (3, 4357327), (13, 1005537), (19, 687999), (23, 568347), (39, 335179), (57, 229333), (59, 221559), (69, 189449), (169, 77349), (177, 73853), (247, 52923), (299, 43719), (437, 29913), (507, 25783), (741, 17641), (767, 17043), (897, 14573), (1121, 11661), (1311, 9971), (1357, 9633), (2301, 5681), (3211, 4071), (3363, 3887)]