201964721

素因数分解:

$7^2\times {\mathrm{31}}^2\times {\mathrm{4289}}^1$

素因数の和:4365

約数の個数: 18

約数和(自身を含む): 242818290

約数和(自身を除く): 40853569

約数列:

[1, 7, 31, 49, 217, 961, 1519, 4289, 6727, 30023, 47089, 132959, 210161, 930713, 4121729, 6514991, 28852103, 201964721]

約数ペア:

[(1, 201964721), (7, 28852103), (31, 6514991), (49, 4121729), (217, 930713), (961, 210161), (1519, 132959), (4289, 47089), (6727, 30023)]