18391886

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 30351360

約数和(自身を除く): 11959474

約数列:

[1, 2, 19, 37, 38, 74, 103, 127, 206, 254, 703, 1406, 1957, 2413, 3811, 3914, 4699, 4826, 7622, 9398, 13081, 26162, 72409, 89281, 144818, 178562, 248539, 483997, 497078, 967994, 9195943, 18391886]

約数ペア:

[(1, 18391886), (2, 9195943), (19, 967994), (37, 497078), (38, 483997), (74, 248539), (103, 178562), (127, 144818), (206, 89281), (254, 72409), (703, 26162), (1406, 13081), (1957, 9398), (2413, 7622), (3811, 4826), (3914, 4699)]