211232725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{69829}}^1$

素因数の和:69861

約数の個数: 18

約数和(自身を含む): 287909090

約数和(自身を除く): 76676365

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 69829, 349145, 768119, 1745725, 3840595, 8449309, 19202975, 42246545, 211232725]

約数ペア:

[(1, 211232725), (5, 42246545), (11, 19202975), (25, 8449309), (55, 3840595), (121, 1745725), (275, 768119), (605, 349145), (3025, 69829)]