20309551563

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{49411}}^1$

素因数の和:49504

約数の個数: 48

約数和(自身を含む): 33227000576

約数和(自身を除く): 12917449013

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 529, 777, 851, 1587, 2553, 3703, 5957, 11109, 17871, 19573, 49411, 58719, 137011, 148233, 345877, 411033, 1037631, 1136453, 1828207, 3409359, 5484621, 7955171, 12797449, 23865513, 26138419, 38392347, 42048761, 78415257, 126146283, 182968933, 294341327, 548906799, 883023981, 967121503, 2901364509, 6769850521, 20309551563]

約数ペア:

[(1, 20309551563), (3, 6769850521), (7, 2901364509), (21, 967121503), (23, 883023981), (37, 548906799), (69, 294341327), (111, 182968933), (161, 126146283), (259, 78415257), (483, 42048761), (529, 38392347), (777, 26138419), (851, 23865513), (1587, 12797449), (2553, 7955171), (3703, 5484621), (5957, 3409359), (11109, 1828207), (17871, 1136453), (19573, 1037631), (49411, 411033), (58719, 345877), (137011, 148233)]