19891212003

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1\times {\mathrm{2803}}^1$

素因数の和:3416

約数の個数: 48

約数和(自身を含む): 31256569344

約数和(自身を除く): 11365357341

約数列:

[1, 3, 9, 13, 39, 117, 131, 393, 463, 1179, 1389, 1703, 2803, 4167, 5109, 6019, 8409, 15327, 18057, 25227, 36439, 54171, 60653, 109317, 181959, 327951, 367193, 545877, 788489, 1101579, 1297789, 2365467, 3304737, 3893367, 4773509, 7096401, 11680101, 14320527, 16871257, 42961581, 50613771, 151841313, 170010359, 510031077, 1530093231, 2210134667, 6630404001, 19891212003]

約数ペア:

[(1, 19891212003), (3, 6630404001), (9, 2210134667), (13, 1530093231), (39, 510031077), (117, 170010359), (131, 151841313), (393, 50613771), (463, 42961581), (1179, 16871257), (1389, 14320527), (1703, 11680101), (2803, 7096401), (4167, 4773509), (5109, 3893367), (6019, 3304737), (8409, 2365467), (15327, 1297789), (18057, 1101579), (25227, 788489), (36439, 545877), (54171, 367193), (60653, 327951), (109317, 181959)]