20688584

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{593}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 45708300

約数和(自身を除く): 25019716

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 593, 623, 712, 1186, 1246, 2372, 2492, 4151, 4361, 4744, 4984, 8302, 8722, 16604, 17444, 29057, 33208, 34888, 52777, 58114, 105554, 116228, 211108, 232456, 369439, 422216, 738878, 1477756, 2586073, 2955512, 5172146, 10344292, 20688584]

約数ペア:

[(1, 20688584), (2, 10344292), (4, 5172146), (7, 2955512), (8, 2586073), (14, 1477756), (28, 738878), (49, 422216), (56, 369439), (89, 232456), (98, 211108), (178, 116228), (196, 105554), (356, 58114), (392, 52777), (593, 34888), (623, 33208), (712, 29057), (1186, 17444), (1246, 16604), (2372, 8722), (2492, 8302), (4151, 4984), (4361, 4744)]