20651678

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1\times {\mathrm{673}}^1$

素因数の和:971

約数の個数: 16

約数和(自身を含む): 31624080

約数和(自身を除く): 10972402

約数列:

[1, 2, 67, 134, 229, 458, 673, 1346, 15343, 30686, 45091, 90182, 154117, 308234, 10325839, 20651678]

約数ペア:

[(1, 20651678), (2, 10325839), (67, 308234), (134, 154117), (229, 90182), (458, 45091), (673, 30686), (1346, 15343)]