21699834

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 49131264

約数和(自身を除く): 27431430

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 73, 74, 78, 103, 111, 146, 206, 219, 222, 309, 438, 481, 618, 949, 962, 1339, 1443, 1898, 2678, 2701, 2847, 2886, 3811, 4017, 5402, 5694, 7519, 7622, 8034, 8103, 11433, 15038, 16206, 22557, 22866, 35113, 45114, 49543, 70226, 97747, 99086, 105339, 148629, 195494, 210678, 278203, 293241, 297258, 556406, 586482, 834609, 1669218, 3616639, 7233278, 10849917, 21699834]

約数ペア:

[(1, 21699834), (2, 10849917), (3, 7233278), (6, 3616639), (13, 1669218), (26, 834609), (37, 586482), (39, 556406), (73, 297258), (74, 293241), (78, 278203), (103, 210678), (111, 195494), (146, 148629), (206, 105339), (219, 99086), (222, 97747), (309, 70226), (438, 49543), (481, 45114), (618, 35113), (949, 22866), (962, 22557), (1339, 16206), (1443, 15038), (1898, 11433), (2678, 8103), (2701, 8034), (2847, 7622), (2886, 7519), (3811, 5694), (4017, 5402)]