27979515

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{647}}^1$

素因数の和:720

約数の個数: 36

約数和(自身を含む): 50190192

約数和(自身を除く): 22210677

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 647, 961, 1395, 1941, 2883, 3235, 4805, 5823, 8649, 9705, 14415, 20057, 29115, 43245, 60171, 100285, 180513, 300855, 621767, 902565, 1865301, 3108835, 5595903, 9326505, 27979515]

約数ペア:

[(1, 27979515), (3, 9326505), (5, 5595903), (9, 3108835), (15, 1865301), (31, 902565), (45, 621767), (93, 300855), (155, 180513), (279, 100285), (465, 60171), (647, 43245), (961, 29115), (1395, 20057), (1941, 14415), (2883, 9705), (3235, 8649), (4805, 5823)]