19989684

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:398

約数の個数: 108

約数和(自身を含む): 59982468

約数和(自身を除く): 39992784

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 121, 132, 143, 156, 198, 234, 242, 286, 353, 363, 396, 429, 468, 484, 572, 706, 726, 858, 1059, 1089, 1287, 1412, 1452, 1573, 1716, 2118, 2178, 2574, 3146, 3177, 3883, 4236, 4356, 4589, 4719, 5148, 6292, 6354, 7766, 9178, 9438, 11649, 12708, 13767, 14157, 15532, 18356, 18876, 23298, 27534, 28314, 34947, 41301, 42713, 46596, 50479, 55068, 56628, 69894, 82602, 85426, 100958, 128139, 139788, 151437, 165204, 170852, 201916, 256278, 302874, 384417, 454311, 512556, 555269, 605748, 768834, 908622, 1110538, 1537668, 1665807, 1817244, 2221076, 3331614, 4997421, 6663228, 9994842, 19989684]

約数ペア:

[(1, 19989684), (2, 9994842), (3, 6663228), (4, 4997421), (6, 3331614), (9, 2221076), (11, 1817244), (12, 1665807), (13, 1537668), (18, 1110538), (22, 908622), (26, 768834), (33, 605748), (36, 555269), (39, 512556), (44, 454311), (52, 384417), (66, 302874), (78, 256278), (99, 201916), (117, 170852), (121, 165204), (132, 151437), (143, 139788), (156, 128139), (198, 100958), (234, 85426), (242, 82602), (286, 69894), (353, 56628), (363, 55068), (396, 50479), (429, 46596), (468, 42713), (484, 41301), (572, 34947), (706, 28314), (726, 27534), (858, 23298), (1059, 18876), (1089, 18356), (1287, 15532), (1412, 14157), (1452, 13767), (1573, 12708), (1716, 11649), (2118, 9438), (2178, 9178), (2574, 7766), (3146, 6354), (3177, 6292), (3883, 5148), (4236, 4719), (4356, 4589)]