2620917

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:175

約数の個数: 40

約数和(自身を含む): 4472160

約数和(自身を除く): 1851243

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 131, 171, 247, 351, 393, 513, 741, 1053, 1179, 1539, 1703, 2223, 2489, 3537, 5109, 6669, 7467, 10611, 15327, 20007, 22401, 32357, 45981, 67203, 97071, 137943, 201609, 291213, 873639, 2620917]

約数ペア:

[(1, 2620917), (3, 873639), (9, 291213), (13, 201609), (19, 137943), (27, 97071), (39, 67203), (57, 45981), (81, 32357), (117, 22401), (131, 20007), (171, 15327), (247, 10611), (351, 7467), (393, 6669), (513, 5109), (741, 3537), (1053, 2489), (1179, 2223), (1539, 1703)]