20963075

素因数分解:

$5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1163}}^1$

素因数の和:1283

約数の個数: 24

約数和(自身を含む): 30021888

約数和(自身を除く): 9058813

約数列:

[1, 5, 7, 25, 35, 103, 175, 515, 721, 1163, 2575, 3605, 5815, 8141, 18025, 29075, 40705, 119789, 203525, 598945, 838523, 2994725, 4192615, 20963075]

約数ペア:

[(1, 20963075), (5, 4192615), (7, 2994725), (25, 838523), (35, 598945), (103, 203525), (175, 119789), (515, 40705), (721, 29075), (1163, 18025), (2575, 8141), (3605, 5815)]