27720165

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3907}}^1$

素因数の和:3969

約数の個数: 32

約数和(自身を含む): 49522176

約数和(自身を除く): 21802011

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 3907, 7095, 11721, 19535, 42977, 58605, 128931, 168001, 214885, 504003, 644655, 840005, 1848011, 2520015, 5544033, 9240055, 27720165]

約数ペア:

[(1, 27720165), (3, 9240055), (5, 5544033), (11, 2520015), (15, 1848011), (33, 840005), (43, 644655), (55, 504003), (129, 214885), (165, 168001), (215, 128931), (473, 58605), (645, 42977), (1419, 19535), (2365, 11721), (3907, 7095)]