20597190915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{213919}}^1$

素因数の和:214072

約数の個数: 48

約数和(自身を含む): 38628817920

約数和(自身を除く): 18031627005

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 131, 147, 245, 393, 655, 735, 917, 1965, 2751, 4585, 6419, 13755, 19257, 32095, 96285, 213919, 641757, 1069595, 1497433, 3208785, 4492299, 7487165, 10482031, 22461495, 28023389, 31446093, 52410155, 84070167, 140116945, 157230465, 196163723, 420350835, 588491169, 980818615, 1373146061, 2942455845, 4119438183, 6865730305, 20597190915]

約数ペア:

[(1, 20597190915), (3, 6865730305), (5, 4119438183), (7, 2942455845), (15, 1373146061), (21, 980818615), (35, 588491169), (49, 420350835), (105, 196163723), (131, 157230465), (147, 140116945), (245, 84070167), (393, 52410155), (655, 31446093), (735, 28023389), (917, 22461495), (1965, 10482031), (2751, 7487165), (4585, 4492299), (6419, 3208785), (13755, 1497433), (19257, 1069595), (32095, 641757), (96285, 213919)]