19005008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1301}}^1$

素因数の和:1403

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 21679888

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1301, 1328, 1826, 2602, 3652, 5204, 7304, 10408, 14311, 14608, 20816, 28622, 57244, 107983, 114488, 215966, 228976, 431932, 863864, 1187813, 1727728, 2375626, 4751252, 9502504, 19005008]

約数ペア:

[(1, 19005008), (2, 9502504), (4, 4751252), (8, 2375626), (11, 1727728), (16, 1187813), (22, 863864), (44, 431932), (83, 228976), (88, 215966), (166, 114488), (176, 107983), (332, 57244), (664, 28622), (913, 20816), (1301, 14608), (1328, 14311), (1826, 10408), (2602, 7304), (3652, 5204)]