18910374

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 44421696

約数和(自身を除く): 25511322

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 131, 147, 262, 294, 393, 491, 786, 917, 982, 1473, 1834, 2751, 2946, 3437, 5502, 6419, 6874, 10311, 12838, 19257, 20622, 24059, 38514, 48118, 64321, 72177, 128642, 144354, 192963, 385926, 450247, 900494, 1350741, 2701482, 3151729, 6303458, 9455187, 18910374]

約数ペア:

[(1, 18910374), (2, 9455187), (3, 6303458), (6, 3151729), (7, 2701482), (14, 1350741), (21, 900494), (42, 450247), (49, 385926), (98, 192963), (131, 144354), (147, 128642), (262, 72177), (294, 64321), (393, 48118), (491, 38514), (786, 24059), (917, 20622), (982, 19257), (1473, 12838), (1834, 10311), (2751, 6874), (2946, 6419), (3437, 5502)]