81931815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8969}}^1$

素因数の和:9016

約数の個数: 48

約数和(自身を含む): 167918400

約数和(自身を除く): 85986585

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 3045, 8969, 9135, 26907, 44845, 62783, 80721, 134535, 188349, 260101, 313915, 403605, 565047, 780303, 941745, 1300505, 1820707, 2340909, 2825235, 3901515, 5462121, 9103535, 11704545, 16386363, 27310605, 81931815]

約数ペア:

[(1, 81931815), (3, 27310605), (5, 16386363), (7, 11704545), (9, 9103535), (15, 5462121), (21, 3901515), (29, 2825235), (35, 2340909), (45, 1820707), (63, 1300505), (87, 941745), (105, 780303), (145, 565047), (203, 403605), (261, 313915), (315, 260101), (435, 188349), (609, 134535), (1015, 80721), (1305, 62783), (1827, 44845), (3045, 26907), (8969, 9135)]