28980063

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7541}}^1$

素因数の和:7615

約数の個数: 24

約数和(自身を含む): 48630816

約数和(自身を除く): 19650753

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 7541, 22623, 52787, 67869, 158361, 460001, 475083, 1380003, 3220007, 4140009, 9660021, 28980063]

約数ペア:

[(1, 28980063), (3, 9660021), (7, 4140009), (9, 3220007), (21, 1380003), (61, 475083), (63, 460001), (183, 158361), (427, 67869), (549, 52787), (1281, 22623), (3843, 7541)]