19870136

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1579}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 44129400

約数和(自身を除く): 24259264

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 242, 286, 484, 572, 968, 1144, 1573, 1579, 3146, 3158, 6292, 6316, 12584, 12632, 17369, 20527, 34738, 41054, 69476, 82108, 138952, 164216, 191059, 225797, 382118, 451594, 764236, 903188, 1528472, 1806376, 2483767, 4967534, 9935068, 19870136]

約数ペア:

[(1, 19870136), (2, 9935068), (4, 4967534), (8, 2483767), (11, 1806376), (13, 1528472), (22, 903188), (26, 764236), (44, 451594), (52, 382118), (88, 225797), (104, 191059), (121, 164216), (143, 138952), (242, 82108), (286, 69476), (484, 41054), (572, 34738), (968, 20527), (1144, 17369), (1573, 12632), (1579, 12584), (3146, 6316), (3158, 6292)]