19894135

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 24346080

約数和(自身を除く): 4451945

約数列:

[1, 5, 109, 173, 211, 545, 865, 1055, 18857, 22999, 36503, 94285, 114995, 182515, 3978827, 19894135]

約数ペア:

[(1, 19894135), (5, 3978827), (109, 182515), (173, 114995), (211, 94285), (545, 36503), (865, 22999), (1055, 18857)]