18993702

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28906458

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 43, 78, 86, 91, 129, 182, 258, 273, 301, 546, 559, 602, 809, 903, 1118, 1618, 1677, 1806, 2427, 3354, 3913, 4854, 5663, 7826, 10517, 11326, 11739, 16989, 21034, 23478, 31551, 33978, 34787, 63102, 69574, 73619, 104361, 147238, 208722, 220857, 243509, 441714, 452231, 487018, 730527, 904462, 1356693, 1461054, 2713386, 3165617, 6331234, 9496851, 18993702]

約数ペア:

[(1, 18993702), (2, 9496851), (3, 6331234), (6, 3165617), (7, 2713386), (13, 1461054), (14, 1356693), (21, 904462), (26, 730527), (39, 487018), (42, 452231), (43, 441714), (78, 243509), (86, 220857), (91, 208722), (129, 147238), (182, 104361), (258, 73619), (273, 69574), (301, 63102), (546, 34787), (559, 33978), (602, 31551), (809, 23478), (903, 21034), (1118, 16989), (1618, 11739), (1677, 11326), (1806, 10517), (2427, 7826), (3354, 5663), (3913, 4854)]