20649978

素因数分解:

$2^1\times 3^4\times {\mathrm{41}}^1\times {\mathrm{3109}}^1$

素因数の和:3164

約数の個数: 40

約数和(自身を含む): 47415060

約数和(自身を除く): 26765082

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 81, 82, 123, 162, 246, 369, 738, 1107, 2214, 3109, 3321, 6218, 6642, 9327, 18654, 27981, 55962, 83943, 127469, 167886, 251829, 254938, 382407, 503658, 764814, 1147221, 2294442, 3441663, 6883326, 10324989, 20649978]

約数ペア:

[(1, 20649978), (2, 10324989), (3, 6883326), (6, 3441663), (9, 2294442), (18, 1147221), (27, 764814), (41, 503658), (54, 382407), (81, 254938), (82, 251829), (123, 167886), (162, 127469), (246, 83943), (369, 55962), (738, 27981), (1107, 18654), (2214, 9327), (3109, 6642), (3321, 6218)]