28713447

素因数分解:

$3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:677

約数の個数: 40

約数和(自身を含む): 49658400

約数和(自身を除く): 20944953

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 267, 567, 569, 623, 801, 1707, 1869, 2403, 3983, 5121, 5607, 7209, 11949, 15363, 16821, 35847, 46089, 50463, 50641, 107541, 151923, 322623, 354487, 455769, 1063461, 1367307, 3190383, 4101921, 9571149, 28713447]

約数ペア:

[(1, 28713447), (3, 9571149), (7, 4101921), (9, 3190383), (21, 1367307), (27, 1063461), (63, 455769), (81, 354487), (89, 322623), (189, 151923), (267, 107541), (567, 50641), (569, 50463), (623, 46089), (801, 35847), (1707, 16821), (1869, 15363), (2403, 11949), (3983, 7209), (5121, 5607)]