21557808

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^2\times {\mathrm{283}}^1$

素因数の和:343

約数の個数: 90

約数和(自身を含む): 63291956

約数和(自身を除く): 41734148

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 72, 92, 138, 144, 184, 207, 276, 283, 368, 414, 529, 552, 566, 828, 849, 1058, 1104, 1132, 1587, 1656, 1698, 2116, 2264, 2547, 3174, 3312, 3396, 4232, 4528, 4761, 5094, 6348, 6509, 6792, 8464, 9522, 10188, 12696, 13018, 13584, 19044, 19527, 20376, 25392, 26036, 38088, 39054, 40752, 52072, 58581, 76176, 78108, 104144, 117162, 149707, 156216, 234324, 299414, 312432, 449121, 468648, 598828, 898242, 937296, 1197656, 1347363, 1796484, 2395312, 2694726, 3592968, 5389452, 7185936, 10778904, 21557808]

約数ペア:

[(1, 21557808), (2, 10778904), (3, 7185936), (4, 5389452), (6, 3592968), (8, 2694726), (9, 2395312), (12, 1796484), (16, 1347363), (18, 1197656), (23, 937296), (24, 898242), (36, 598828), (46, 468648), (48, 449121), (69, 312432), (72, 299414), (92, 234324), (138, 156216), (144, 149707), (184, 117162), (207, 104144), (276, 78108), (283, 76176), (368, 58581), (414, 52072), (529, 40752), (552, 39054), (566, 38088), (828, 26036), (849, 25392), (1058, 20376), (1104, 19527), (1132, 19044), (1587, 13584), (1656, 13018), (1698, 12696), (2116, 10188), (2264, 9522), (2547, 8464), (3174, 6792), (3312, 6509), (3396, 6348), (4232, 5094), (4528, 4761)]