16990325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2045

約数の個数: 24

約数和(自身を含む): 23736576

約数和(自身を除く): 6746251

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 1993, 8525, 9965, 21923, 49825, 61783, 109615, 308915, 548075, 679613, 1544575, 3398065, 16990325]

約数ペア:

[(1, 16990325), (5, 3398065), (11, 1544575), (25, 679613), (31, 548075), (55, 308915), (155, 109615), (275, 61783), (341, 49825), (775, 21923), (1705, 9965), (1993, 8525)]