28000203

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2647

約数の個数: 32

約数和(自身を含む): 47554560

約数和(自身を除く): 19554357

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 2579, 3619, 7737, 10857, 18053, 28369, 54159, 85107, 121213, 198583, 363639, 595749, 848491, 1333343, 2545473, 4000029, 9333401, 28000203]

約数ペア:

[(1, 28000203), (3, 9333401), (7, 4000029), (11, 2545473), (21, 1333343), (33, 848491), (47, 595749), (77, 363639), (141, 198583), (231, 121213), (329, 85107), (517, 54159), (987, 28369), (1551, 18053), (2579, 10857), (3619, 7737)]