18678918

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 19544442

約数列:

[1, 2, 3, 6, 79, 157, 158, 237, 251, 314, 471, 474, 502, 753, 942, 1506, 12403, 19829, 24806, 37209, 39407, 39658, 59487, 74418, 78814, 118221, 118974, 236442, 3113153, 6226306, 9339459, 18678918]

約数ペア:

[(1, 18678918), (2, 9339459), (3, 6226306), (6, 3113153), (79, 236442), (157, 118974), (158, 118221), (237, 78814), (251, 74418), (314, 59487), (471, 39658), (474, 39407), (502, 37209), (753, 24806), (942, 19829), (1506, 12403)]