21957870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 60673536

約数和(自身を除く): 38715666

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 121, 138, 165, 230, 242, 253, 263, 330, 345, 363, 506, 526, 605, 690, 726, 759, 789, 1210, 1265, 1315, 1518, 1578, 1815, 2530, 2630, 2783, 2893, 3630, 3795, 3945, 5566, 5786, 6049, 7590, 7890, 8349, 8679, 12098, 13915, 14465, 16698, 17358, 18147, 27830, 28930, 30245, 31823, 36294, 41745, 43395, 60490, 63646, 66539, 83490, 86790, 90735, 95469, 133078, 159115, 181470, 190938, 199617, 318230, 332695, 399234, 477345, 665390, 731929, 954690, 998085, 1463858, 1996170, 2195787, 3659645, 4391574, 7319290, 10978935, 21957870]

約数ペア:

[(1, 21957870), (2, 10978935), (3, 7319290), (5, 4391574), (6, 3659645), (10, 2195787), (11, 1996170), (15, 1463858), (22, 998085), (23, 954690), (30, 731929), (33, 665390), (46, 477345), (55, 399234), (66, 332695), (69, 318230), (110, 199617), (115, 190938), (121, 181470), (138, 159115), (165, 133078), (230, 95469), (242, 90735), (253, 86790), (263, 83490), (330, 66539), (345, 63646), (363, 60490), (506, 43395), (526, 41745), (605, 36294), (690, 31823), (726, 30245), (759, 28930), (789, 27830), (1210, 18147), (1265, 17358), (1315, 16698), (1518, 14465), (1578, 13915), (1815, 12098), (2530, 8679), (2630, 8349), (2783, 7890), (2893, 7590), (3630, 6049), (3795, 5786), (3945, 5566)]