217270790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{18121}}^1$

素因数の和:18248

約数の個数: 32

約数和(自身を含む): 430578720

約数和(自身を除く): 213307930

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 2398, 5995, 11990, 18121, 36242, 90605, 181210, 199331, 398662, 996655, 1975189, 1993310, 3950378, 9875945, 19751890, 21727079, 43454158, 108635395, 217270790]

約数ペア:

[(1, 217270790), (2, 108635395), (5, 43454158), (10, 21727079), (11, 19751890), (22, 9875945), (55, 3950378), (109, 1993310), (110, 1975189), (218, 996655), (545, 398662), (1090, 199331), (1199, 181210), (2398, 90605), (5995, 36242), (11990, 18121)]