21087495

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 44815680

約数和(自身を除く): 23728185

約数列:

[1, 3, 5, 9, 11, 13, 15, 29, 33, 39, 45, 55, 65, 87, 99, 113, 117, 143, 145, 165, 195, 261, 319, 339, 377, 429, 435, 495, 565, 585, 715, 957, 1017, 1131, 1243, 1287, 1305, 1469, 1595, 1695, 1885, 2145, 2871, 3277, 3393, 3729, 4147, 4407, 4785, 5085, 5655, 6215, 6435, 7345, 9831, 11187, 12441, 13221, 14355, 16159, 16385, 16965, 18645, 20735, 22035, 29493, 36047, 37323, 42601, 48477, 49155, 55935, 62205, 66105, 80795, 108141, 127803, 145431, 147465, 180235, 186615, 213005, 242385, 324423, 383409, 468611, 540705, 639015, 727155, 1405833, 1622115, 1917045, 2343055, 4217499, 7029165, 21087495]

約数ペア:

[(1, 21087495), (3, 7029165), (5, 4217499), (9, 2343055), (11, 1917045), (13, 1622115), (15, 1405833), (29, 727155), (33, 639015), (39, 540705), (45, 468611), (55, 383409), (65, 324423), (87, 242385), (99, 213005), (113, 186615), (117, 180235), (143, 147465), (145, 145431), (165, 127803), (195, 108141), (261, 80795), (319, 66105), (339, 62205), (377, 55935), (429, 49155), (435, 48477), (495, 42601), (565, 37323), (585, 36047), (715, 29493), (957, 22035), (1017, 20735), (1131, 18645), (1243, 16965), (1287, 16385), (1305, 16159), (1469, 14355), (1595, 13221), (1695, 12441), (1885, 11187), (2145, 9831), (2871, 7345), (3277, 6435), (3393, 6215), (3729, 5655), (4147, 5085), (4407, 4785)]