20996784

素因数分解:

$2^4\times 3^2\times {\mathrm{139}}^1\times {\mathrm{1049}}^1$

素因数の和:1202

約数の個数: 60

約数和(自身を含む): 59241000

約数和(自身を除く): 38244216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 139, 144, 278, 417, 556, 834, 1049, 1112, 1251, 1668, 2098, 2224, 2502, 3147, 3336, 4196, 5004, 6294, 6672, 8392, 9441, 10008, 12588, 16784, 18882, 20016, 25176, 37764, 50352, 75528, 145811, 151056, 291622, 437433, 583244, 874866, 1166488, 1312299, 1749732, 2332976, 2624598, 3499464, 5249196, 6998928, 10498392, 20996784]

約数ペア:

[(1, 20996784), (2, 10498392), (3, 6998928), (4, 5249196), (6, 3499464), (8, 2624598), (9, 2332976), (12, 1749732), (16, 1312299), (18, 1166488), (24, 874866), (36, 583244), (48, 437433), (72, 291622), (139, 151056), (144, 145811), (278, 75528), (417, 50352), (556, 37764), (834, 25176), (1049, 20016), (1112, 18882), (1251, 16784), (1668, 12588), (2098, 10008), (2224, 9441), (2502, 8392), (3147, 6672), (3336, 6294), (4196, 5004)]