321291255

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{7109}}^1$

素因数の和:7271

約数の個数: 32

約数和(自身を含む): 540587520

約数和(自身を除く): 219296265

約数列:

[1, 3, 5, 15, 23, 69, 115, 131, 345, 393, 655, 1965, 3013, 7109, 9039, 15065, 21327, 35545, 45195, 106635, 163507, 490521, 817535, 931279, 2452605, 2793837, 4656395, 13969185, 21419417, 64258251, 107097085, 321291255]

約数ペア:

[(1, 321291255), (3, 107097085), (5, 64258251), (15, 21419417), (23, 13969185), (69, 4656395), (115, 2793837), (131, 2452605), (345, 931279), (393, 817535), (655, 490521), (1965, 163507), (3013, 106635), (7109, 45195), (9039, 35545), (15065, 21327)]