20545404

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 52569216

約数和(自身を除く): 32023812

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 317, 491, 634, 951, 982, 1268, 1473, 1902, 1964, 2946, 3487, 3804, 5401, 5892, 6974, 10461, 10802, 13948, 16203, 20922, 21604, 32406, 41844, 64812, 155647, 311294, 466941, 622588, 933882, 1712117, 1867764, 3424234, 5136351, 6848468, 10272702, 20545404]

約数ペア:

[(1, 20545404), (2, 10272702), (3, 6848468), (4, 5136351), (6, 3424234), (11, 1867764), (12, 1712117), (22, 933882), (33, 622588), (44, 466941), (66, 311294), (132, 155647), (317, 64812), (491, 41844), (634, 32406), (951, 21604), (982, 20922), (1268, 16203), (1473, 13948), (1902, 10802), (1964, 10461), (2946, 6974), (3487, 5892), (3804, 5401)]