19338004

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 40134528

約数和(自身を除く): 20796524

約数列:

[1, 2, 4, 7, 14, 28, 53, 83, 106, 157, 166, 212, 314, 332, 371, 581, 628, 742, 1099, 1162, 1484, 2198, 2324, 4396, 4399, 8321, 8798, 13031, 16642, 17596, 26062, 30793, 33284, 52124, 58247, 61586, 91217, 116494, 123172, 182434, 232988, 364868, 690643, 1381286, 2762572, 4834501, 9669002, 19338004]

約数ペア:

[(1, 19338004), (2, 9669002), (4, 4834501), (7, 2762572), (14, 1381286), (28, 690643), (53, 364868), (83, 232988), (106, 182434), (157, 123172), (166, 116494), (212, 91217), (314, 61586), (332, 58247), (371, 52124), (581, 33284), (628, 30793), (742, 26062), (1099, 17596), (1162, 16642), (1484, 13031), (2198, 8798), (2324, 8321), (4396, 4399)]