21155376

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 60353280

約数和(自身を除く): 39197904

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 103, 132, 176, 206, 264, 309, 389, 412, 528, 618, 778, 824, 1133, 1167, 1236, 1556, 1648, 2266, 2334, 2472, 3112, 3399, 4279, 4532, 4668, 4944, 6224, 6798, 8558, 9064, 9336, 12837, 13596, 17116, 18128, 18672, 25674, 27192, 34232, 40067, 51348, 54384, 68464, 80134, 102696, 120201, 160268, 205392, 240402, 320536, 440737, 480804, 641072, 881474, 961608, 1322211, 1762948, 1923216, 2644422, 3525896, 5288844, 7051792, 10577688, 21155376]

約数ペア:

[(1, 21155376), (2, 10577688), (3, 7051792), (4, 5288844), (6, 3525896), (8, 2644422), (11, 1923216), (12, 1762948), (16, 1322211), (22, 961608), (24, 881474), (33, 641072), (44, 480804), (48, 440737), (66, 320536), (88, 240402), (103, 205392), (132, 160268), (176, 120201), (206, 102696), (264, 80134), (309, 68464), (389, 54384), (412, 51348), (528, 40067), (618, 34232), (778, 27192), (824, 25674), (1133, 18672), (1167, 18128), (1236, 17116), (1556, 13596), (1648, 12837), (2266, 9336), (2334, 9064), (2472, 8558), (3112, 6798), (3399, 6224), (4279, 4944), (4532, 4668)]