20638866

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{431}}^1$

素因数の和:806

約数の個数: 32

約数和(自身を含む): 43296768

約数和(自身を除く): 22657902

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 347, 431, 694, 862, 1041, 1293, 2082, 2586, 7981, 9913, 15962, 19826, 23943, 29739, 47886, 59478, 149557, 299114, 448671, 897342, 3439811, 6879622, 10319433, 20638866]

約数ペア:

[(1, 20638866), (2, 10319433), (3, 6879622), (6, 3439811), (23, 897342), (46, 448671), (69, 299114), (138, 149557), (347, 59478), (431, 47886), (694, 29739), (862, 23943), (1041, 19826), (1293, 15962), (2082, 9913), (2586, 7981)]