18691970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{677}}^1$

素因数の和:946

約数の個数: 32

約数和(自身を含む): 36904896

約数和(自身を除く): 18212926

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 677, 1255, 1354, 2510, 2761, 3385, 5522, 6770, 7447, 13805, 14894, 27610, 37235, 74470, 169927, 339854, 849635, 1699270, 1869197, 3738394, 9345985, 18691970]

約数ペア:

[(1, 18691970), (2, 9345985), (5, 3738394), (10, 1869197), (11, 1699270), (22, 849635), (55, 339854), (110, 169927), (251, 74470), (502, 37235), (677, 27610), (1255, 14894), (1354, 13805), (2510, 7447), (2761, 6770), (3385, 5522)]