21818253105

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{6529}}^1$

素因数の和:6751

約数の個数: 96

約数和(自身を含む): 42491180160

約数和(自身を除く): 20672927055

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 157, 165, 215, 387, 471, 473, 495, 645, 785, 1413, 1419, 1727, 1935, 2355, 2365, 4257, 5181, 6529, 6751, 7065, 7095, 8635, 15543, 19587, 20253, 21285, 25905, 32645, 33755, 58761, 60759, 71819, 74261, 77715, 97935, 101265, 215457, 222783, 280747, 293805, 303795, 359095, 371305, 646371, 668349, 842241, 1025053, 1077285, 1113915, 1403735, 2526723, 3075159, 3088217, 3231855, 3341745, 4211205, 5125265, 9225477, 9264651, 11275583, 12633615, 15375795, 15441085, 27793953, 33826749, 44077279, 46127385, 46323255, 56377915, 101480247, 132231837, 138969765, 169133745, 220386395, 396695511, 484850069, 507401235, 661159185, 1454550207, 1983477555, 2424250345, 4363650621, 7272751035, 21818253105]

約数ペア:

[(1, 21818253105), (3, 7272751035), (5, 4363650621), (9, 2424250345), (11, 1983477555), (15, 1454550207), (33, 661159185), (43, 507401235), (45, 484850069), (55, 396695511), (99, 220386395), (129, 169133745), (157, 138969765), (165, 132231837), (215, 101480247), (387, 56377915), (471, 46323255), (473, 46127385), (495, 44077279), (645, 33826749), (785, 27793953), (1413, 15441085), (1419, 15375795), (1727, 12633615), (1935, 11275583), (2355, 9264651), (2365, 9225477), (4257, 5125265), (5181, 4211205), (6529, 3341745), (6751, 3231855), (7065, 3088217), (7095, 3075159), (8635, 2526723), (15543, 1403735), (19587, 1113915), (20253, 1077285), (21285, 1025053), (25905, 842241), (32645, 668349), (33755, 646371), (58761, 371305), (60759, 359095), (71819, 303795), (74261, 293805), (77715, 280747), (97935, 222783), (101265, 215457)]