19989292

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 37551360

約数和(自身を除く): 17562068

約数列:

[1, 2, 4, 19, 38, 76, 109, 127, 218, 254, 361, 436, 508, 722, 1444, 2071, 2413, 4142, 4826, 8284, 9652, 13843, 27686, 39349, 45847, 55372, 78698, 91694, 157396, 183388, 263017, 526034, 1052068, 4997323, 9994646, 19989292]

約数ペア:

[(1, 19989292), (2, 9994646), (4, 4997323), (19, 1052068), (38, 526034), (76, 263017), (109, 183388), (127, 157396), (218, 91694), (254, 78698), (361, 55372), (436, 45847), (508, 39349), (722, 27686), (1444, 13843), (2071, 9652), (2413, 8284), (4142, 4826)]