19973705

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 24594240

約数和(自身を除く): 4620535

約数列:

[1, 5, 67, 109, 335, 545, 547, 2735, 7303, 36515, 36649, 59623, 183245, 298115, 3994741, 19973705]

約数ペア:

[(1, 19973705), (5, 3994741), (67, 298115), (109, 183245), (335, 59623), (545, 36649), (547, 36515), (2735, 7303)]