2108991015

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{20123}}^1$

素因数の和:20288

約数の個数: 48

約数和(自身を含む): 3899065248

約数和(自身を除く): 1790074233

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 137, 153, 255, 411, 685, 765, 1233, 2055, 2329, 6165, 6987, 11645, 20123, 20961, 34935, 60369, 100615, 104805, 181107, 301845, 342091, 905535, 1026273, 1710455, 2756851, 3078819, 5131365, 8270553, 13784255, 15394095, 24811659, 41352765, 46866467, 124058295, 140599401, 234332335, 421798203, 702997005, 2108991015]

約数ペア:

[(1, 2108991015), (3, 702997005), (5, 421798203), (9, 234332335), (15, 140599401), (17, 124058295), (45, 46866467), (51, 41352765), (85, 24811659), (137, 15394095), (153, 13784255), (255, 8270553), (411, 5131365), (685, 3078819), (765, 2756851), (1233, 1710455), (2055, 1026273), (2329, 905535), (6165, 342091), (6987, 301845), (11645, 181107), (20123, 104805), (20961, 100615), (34935, 60369)]