20901041

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 26790912

約数和(自身を除く): 5889871

約数列:

[1, 7, 17, 37, 47, 101, 119, 259, 329, 629, 707, 799, 1717, 1739, 3737, 4403, 4747, 5593, 12019, 12173, 26159, 29563, 33229, 63529, 80699, 175639, 206941, 444703, 564893, 1229473, 2985863, 20901041]

約数ペア:

[(1, 20901041), (7, 2985863), (17, 1229473), (37, 564893), (47, 444703), (101, 206941), (119, 175639), (259, 80699), (329, 63529), (629, 33229), (707, 29563), (799, 26159), (1717, 12173), (1739, 12019), (3737, 5593), (4403, 4747)]