20963085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 40884480

約数和(自身を除く): 19921395

約数列:

[1, 3, 5, 11, 13, 15, 29, 33, 39, 55, 65, 87, 143, 145, 165, 195, 319, 337, 377, 429, 435, 715, 957, 1011, 1131, 1595, 1685, 1885, 2145, 3707, 4147, 4381, 4785, 5055, 5655, 9773, 11121, 12441, 13143, 18535, 20735, 21905, 29319, 48191, 48865, 55605, 62205, 65715, 107503, 127049, 144573, 146595, 240955, 322509, 381147, 537515, 635245, 722865, 1397539, 1612545, 1905735, 4192617, 6987695, 20963085]

約数ペア:

[(1, 20963085), (3, 6987695), (5, 4192617), (11, 1905735), (13, 1612545), (15, 1397539), (29, 722865), (33, 635245), (39, 537515), (55, 381147), (65, 322509), (87, 240955), (143, 146595), (145, 144573), (165, 127049), (195, 107503), (319, 65715), (337, 62205), (377, 55605), (429, 48865), (435, 48191), (715, 29319), (957, 21905), (1011, 20735), (1131, 18535), (1595, 13143), (1685, 12441), (1885, 11121), (2145, 9773), (3707, 5655), (4147, 5055), (4381, 4785)]