20651847

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{983}}^1$

素因数の和:1182

約数の個数: 16

約数和(自身を含む): 28339200

約数和(自身を除く): 7687353

約数列:

[1, 3, 47, 141, 149, 447, 983, 2949, 7003, 21009, 46201, 138603, 146467, 439401, 6883949, 20651847]

約数ペア:

[(1, 20651847), (3, 6883949), (47, 439401), (141, 146467), (149, 138603), (447, 46201), (983, 21009), (2949, 7003)]