19901301

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3659}}^1$

素因数の和:3713

約数の個数: 24

約数和(自身を含む): 31710240

約数和(自身を除く): 11808939

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3659, 5439, 10977, 25613, 76839, 135383, 179291, 406149, 537873, 947681, 2843043, 6633767, 19901301]

約数ペア:

[(1, 19901301), (3, 6633767), (7, 2843043), (21, 947681), (37, 537873), (49, 406149), (111, 179291), (147, 135383), (259, 76839), (777, 25613), (1813, 10977), (3659, 5439)]