18945416

素因数分解:

$2^3\times 7^1\times {\mathrm{373}}^1\times {\mathrm{907}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 40751040

約数和(自身を除く): 21805624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 373, 746, 907, 1492, 1814, 2611, 2984, 3628, 5222, 6349, 7256, 10444, 12698, 20888, 25396, 50792, 338311, 676622, 1353244, 2368177, 2706488, 4736354, 9472708, 18945416]

約数ペア:

[(1, 18945416), (2, 9472708), (4, 4736354), (7, 2706488), (8, 2368177), (14, 1353244), (28, 676622), (56, 338311), (373, 50792), (746, 25396), (907, 20888), (1492, 12698), (1814, 10444), (2611, 7256), (2984, 6349), (3628, 5222)]