289690037

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2269}}^1$

素因数の和:2373

約数の個数: 32

約数和(自身を含む): 378309120

約数和(自身を除く): 88619083

約数列:

[1, 7, 13, 23, 61, 91, 161, 299, 427, 793, 1403, 2093, 2269, 5551, 9821, 15883, 18239, 29497, 52187, 127673, 138409, 206479, 365309, 678431, 968863, 1799317, 3183407, 4749017, 12595219, 22283849, 41384291, 289690037]

約数ペア:

[(1, 289690037), (7, 41384291), (13, 22283849), (23, 12595219), (61, 4749017), (91, 3183407), (161, 1799317), (299, 968863), (427, 678431), (793, 365309), (1403, 206479), (2093, 138409), (2269, 127673), (5551, 52187), (9821, 29497), (15883, 18239)]