19883834

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4517}}^1$

素因数の和:4621

約数の個数: 16

約数和(自身を含む): 31228416

約数和(自身を除く): 11344582

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4517, 9034, 140027, 280054, 320707, 641414, 9941917, 19883834]

約数ペア:

[(1, 19883834), (2, 9941917), (31, 641414), (62, 320707), (71, 280054), (142, 140027), (2201, 9034), (4402, 4517)]