18539612

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 42039648

約数和(自身を除く): 23500036

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 53, 62, 91, 106, 124, 182, 212, 217, 364, 371, 403, 434, 689, 742, 806, 868, 961, 1378, 1484, 1612, 1643, 1922, 2756, 2821, 3286, 3844, 4823, 5642, 6572, 6727, 9646, 11284, 11501, 12493, 13454, 19292, 21359, 23002, 24986, 26908, 42718, 46004, 49972, 50933, 85436, 87451, 101866, 149513, 174902, 203732, 299026, 349804, 356531, 598052, 662129, 713062, 1324258, 1426124, 2648516, 4634903, 9269806, 18539612]

約数ペア:

[(1, 18539612), (2, 9269806), (4, 4634903), (7, 2648516), (13, 1426124), (14, 1324258), (26, 713062), (28, 662129), (31, 598052), (52, 356531), (53, 349804), (62, 299026), (91, 203732), (106, 174902), (124, 149513), (182, 101866), (212, 87451), (217, 85436), (364, 50933), (371, 49972), (403, 46004), (434, 42718), (689, 26908), (742, 24986), (806, 23002), (868, 21359), (961, 19292), (1378, 13454), (1484, 12493), (1612, 11501), (1643, 11284), (1922, 9646), (2756, 6727), (2821, 6572), (3286, 5642), (3844, 4823)]