31128561

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 45909864

約数和(自身を除く): 14781303

約数列:

[1, 3, 9, 97, 181, 197, 291, 543, 591, 873, 1629, 1773, 17557, 19109, 35657, 52671, 57327, 106971, 158013, 171981, 320913, 3458729, 10376187, 31128561]

約数ペア:

[(1, 31128561), (3, 10376187), (9, 3458729), (97, 320913), (181, 171981), (197, 158013), (291, 106971), (543, 57327), (591, 52671), (873, 35657), (1629, 19109), (1773, 17557)]