18781708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 38110464

約数和(自身を除く): 19328756

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 67, 92, 134, 253, 268, 277, 506, 554, 737, 1012, 1108, 1474, 1541, 2948, 3047, 3082, 6094, 6164, 6371, 12188, 12742, 16951, 18559, 25484, 33902, 37118, 67804, 70081, 74236, 140162, 204149, 280324, 408298, 426857, 816596, 853714, 1707428, 4695427, 9390854, 18781708]

約数ペア:

[(1, 18781708), (2, 9390854), (4, 4695427), (11, 1707428), (22, 853714), (23, 816596), (44, 426857), (46, 408298), (67, 280324), (92, 204149), (134, 140162), (253, 74236), (268, 70081), (277, 67804), (506, 37118), (554, 33902), (737, 25484), (1012, 18559), (1108, 16951), (1474, 12742), (1541, 12188), (2948, 6371), (3047, 6164), (3082, 6094)]