19961294

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:731

約数の個数: 16

約数和(自身を含む): 30404256

約数和(自身を除く): 10442962

約数列:

[1, 2, 151, 157, 302, 314, 421, 842, 23707, 47414, 63571, 66097, 127142, 132194, 9980647, 19961294]

約数ペア:

[(1, 19961294), (2, 9980647), (151, 132194), (157, 127142), (302, 66097), (314, 63571), (421, 47414), (842, 23707)]