19738701

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 31152000

約数和(自身を除く): 11413299

約数列:

[1, 3, 9, 19, 27, 57, 109, 171, 327, 353, 513, 981, 1059, 2071, 2943, 3177, 6213, 6707, 9531, 18639, 20121, 38477, 55917, 60363, 115431, 181089, 346293, 731063, 1038879, 2193189, 6579567, 19738701]

約数ペア:

[(1, 19738701), (3, 6579567), (9, 2193189), (19, 1038879), (27, 731063), (57, 346293), (109, 181089), (171, 115431), (327, 60363), (353, 55917), (513, 38477), (981, 20121), (1059, 18639), (2071, 9531), (2943, 6707), (3177, 6213)]