18978688

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2213}}^1$

素因数の和:2294

約数の個数: 32

約数和(自身を含む): 38390760

約数和(自身を除く): 19412072

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 2213, 4288, 4426, 8576, 8852, 17704, 35408, 70816, 141632, 148271, 283264, 296542, 593084, 1186168, 2372336, 4744672, 9489344, 18978688]

約数ペア:

[(1, 18978688), (2, 9489344), (4, 4744672), (8, 2372336), (16, 1186168), (32, 593084), (64, 296542), (67, 283264), (128, 148271), (134, 141632), (268, 70816), (536, 35408), (1072, 17704), (2144, 8852), (2213, 8576), (4288, 4426)]