18965739

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 28929600

約数和(自身を除く): 9963861

約数列:

[1, 3, 13, 29, 39, 41, 87, 123, 377, 409, 533, 1131, 1189, 1227, 1599, 3567, 5317, 11861, 15457, 15951, 16769, 35583, 46371, 50307, 154193, 217997, 462579, 486301, 653991, 1458903, 6321913, 18965739]

約数ペア:

[(1, 18965739), (3, 6321913), (13, 1458903), (29, 653991), (39, 486301), (41, 462579), (87, 217997), (123, 154193), (377, 50307), (409, 46371), (533, 35583), (1131, 16769), (1189, 15951), (1227, 15457), (1599, 11861), (3567, 5317)]