28671741

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1409}}^1$

素因数の和:1458

約数の個数: 48

約数和(自身を含む): 52790400

約数和(自身を除く): 24118659

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 1409, 2261, 2907, 4227, 6783, 9863, 12681, 20349, 23953, 26771, 29589, 71859, 80313, 88767, 167671, 187397, 215577, 240939, 455107, 503013, 562191, 1365321, 1509039, 1686573, 3185749, 4095963, 9557247, 28671741]

約数ペア:

[(1, 28671741), (3, 9557247), (7, 4095963), (9, 3185749), (17, 1686573), (19, 1509039), (21, 1365321), (51, 562191), (57, 503013), (63, 455107), (119, 240939), (133, 215577), (153, 187397), (171, 167671), (323, 88767), (357, 80313), (399, 71859), (969, 29589), (1071, 26771), (1197, 23953), (1409, 20349), (2261, 12681), (2907, 9863), (4227, 6783)]