21659955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{101}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 38379744

約数和(自身を除く): 16719789

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 101, 145, 255, 303, 435, 493, 505, 841, 1479, 1515, 1717, 2465, 2523, 2929, 4205, 5151, 7395, 8585, 8787, 12615, 14297, 14645, 25755, 42891, 43935, 49793, 71485, 84941, 149379, 214455, 248965, 254823, 424705, 746895, 1274115, 1443997, 4331991, 7219985, 21659955]

約数ペア:

[(1, 21659955), (3, 7219985), (5, 4331991), (15, 1443997), (17, 1274115), (29, 746895), (51, 424705), (85, 254823), (87, 248965), (101, 214455), (145, 149379), (255, 84941), (303, 71485), (435, 49793), (493, 43935), (505, 42891), (841, 25755), (1479, 14645), (1515, 14297), (1717, 12615), (2465, 8787), (2523, 8585), (2929, 7395), (4205, 5151)]