16628555

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 20901888

約数和(自身を除く): 4273333

約数列:

[1, 5, 31, 71, 155, 355, 1511, 2201, 7555, 11005, 46841, 107281, 234205, 536405, 3325711, 16628555]

約数ペア:

[(1, 16628555), (5, 3325711), (31, 536405), (71, 234205), (155, 107281), (355, 46841), (1511, 11005), (2201, 7555)]