18211011

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1627}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 30632448

約数和(自身を除く): 12421437

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 1627, 3731, 4881, 11193, 11389, 21151, 34167, 63453, 66707, 148057, 200121, 444171, 466949, 867191, 1400847, 2601573, 6070337, 18211011]

約数ペア:

[(1, 18211011), (3, 6070337), (7, 2601573), (13, 1400847), (21, 867191), (39, 466949), (41, 444171), (91, 200121), (123, 148057), (273, 66707), (287, 63453), (533, 34167), (861, 21151), (1599, 11389), (1627, 11193), (3731, 4881)]