247698979

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:1027

約数の個数: 24

約数和(自身を含む): 284519984

約数和(自身を除く): 36821005

約数列:

[1, 11, 37, 61, 121, 407, 671, 907, 2257, 4477, 7381, 9977, 24827, 33559, 55327, 109747, 273097, 369149, 608597, 2047099, 4060639, 6694567, 22518089, 247698979]

約数ペア:

[(1, 247698979), (11, 22518089), (37, 6694567), (61, 4060639), (121, 2047099), (407, 608597), (671, 369149), (907, 273097), (2257, 109747), (4477, 55327), (7381, 33559), (9977, 24827)]