31742217

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 52852800

約数和(自身を除く): 21110583

約数列:

[1, 3, 9, 13, 19, 39, 57, 109, 117, 131, 171, 247, 327, 393, 741, 981, 1179, 1417, 1703, 2071, 2223, 2489, 4251, 5109, 6213, 7467, 12753, 14279, 15327, 18639, 22401, 26923, 32357, 42837, 80769, 97071, 128511, 185627, 242307, 271301, 291213, 556881, 813903, 1670643, 2441709, 3526913, 10580739, 31742217]

約数ペア:

[(1, 31742217), (3, 10580739), (9, 3526913), (13, 2441709), (19, 1670643), (39, 813903), (57, 556881), (109, 291213), (117, 271301), (131, 242307), (171, 185627), (247, 128511), (327, 97071), (393, 80769), (741, 42837), (981, 32357), (1179, 26923), (1417, 22401), (1703, 18639), (2071, 15327), (2223, 14279), (2489, 12753), (4251, 7467), (5109, 6213)]