19031859

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{947}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 35493120

約数和(自身を除く): 16461261

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 63, 77, 87, 99, 203, 231, 261, 319, 609, 693, 947, 957, 1827, 2233, 2841, 2871, 6629, 6699, 8523, 10417, 19887, 20097, 27463, 31251, 59661, 72919, 82389, 93753, 192241, 218757, 247167, 302093, 576723, 656271, 906279, 1730169, 2114651, 2718837, 6343953, 19031859]

約数ペア:

[(1, 19031859), (3, 6343953), (7, 2718837), (9, 2114651), (11, 1730169), (21, 906279), (29, 656271), (33, 576723), (63, 302093), (77, 247167), (87, 218757), (99, 192241), (203, 93753), (231, 82389), (261, 72919), (319, 59661), (609, 31251), (693, 27463), (947, 20097), (957, 19887), (1827, 10417), (2233, 8523), (2841, 6699), (2871, 6629)]