207615401

素因数分解:

$7^2\times {\mathrm{31}}^2\times {\mathrm{4409}}^1$

素因数の和:4485

約数の個数: 18

約数和(自身を含む): 249610410

約数和(自身を除く): 41995009

約数列:

[1, 7, 31, 49, 217, 961, 1519, 4409, 6727, 30863, 47089, 136679, 216041, 956753, 4237049, 6697271, 29659343, 207615401]

約数ペア:

[(1, 207615401), (7, 29659343), (31, 6697271), (49, 4237049), (217, 956753), (961, 216041), (1519, 136679), (4409, 47089), (6727, 30863)]