28870443

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 50918400

約数和(自身を除く): 22047957

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 89, 133, 171, 267, 271, 399, 623, 801, 813, 1197, 1691, 1869, 1897, 2439, 5073, 5149, 5607, 5691, 11837, 15219, 15447, 17073, 24119, 35511, 36043, 46341, 72357, 106533, 108129, 168833, 217071, 324387, 458261, 506499, 1374783, 1519497, 3207827, 4124349, 9623481, 28870443]

約数ペア:

[(1, 28870443), (3, 9623481), (7, 4124349), (9, 3207827), (19, 1519497), (21, 1374783), (57, 506499), (63, 458261), (89, 324387), (133, 217071), (171, 168833), (267, 108129), (271, 106533), (399, 72357), (623, 46341), (801, 36043), (813, 35511), (1197, 24119), (1691, 17073), (1869, 15447), (1897, 15219), (2439, 11837), (5073, 5691), (5149, 5607)]