21304712

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1693}}^1$

素因数の和:1734

約数の個数: 48

約数和(自身を含む): 47313420

約数和(自身を除く): 26008708

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 242, 286, 484, 572, 968, 1144, 1573, 1693, 3146, 3386, 6292, 6772, 12584, 13544, 18623, 22009, 37246, 44018, 74492, 88036, 148984, 176072, 204853, 242099, 409706, 484198, 819412, 968396, 1638824, 1936792, 2663089, 5326178, 10652356, 21304712]

約数ペア:

[(1, 21304712), (2, 10652356), (4, 5326178), (8, 2663089), (11, 1936792), (13, 1638824), (22, 968396), (26, 819412), (44, 484198), (52, 409706), (88, 242099), (104, 204853), (121, 176072), (143, 148984), (242, 88036), (286, 74492), (484, 44018), (572, 37246), (968, 22009), (1144, 18623), (1573, 13544), (1693, 12584), (3146, 6772), (3386, 6292)]