28538181

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6761}}^1$

素因数の和:6841

約数の個数: 24

約数和(自身を含む): 47820864

約数和(自身を除く): 19282683

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6761, 20283, 47327, 60849, 141981, 425943, 452987, 1358961, 3170909, 4076883, 9512727, 28538181]

約数ペア:

[(1, 28538181), (3, 9512727), (7, 4076883), (9, 3170909), (21, 1358961), (63, 452987), (67, 425943), (201, 141981), (469, 60849), (603, 47327), (1407, 20283), (4221, 6761)]