21270708

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{5323}}^1$

素因数の和:5373

約数の個数: 48

約数和(自身を含む): 56647360

約数和(自身を除く): 35376652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 5323, 10646, 15969, 21292, 31938, 47907, 63876, 95814, 143721, 191628, 196951, 287442, 393902, 574884, 590853, 787804, 1181706, 1772559, 2363412, 3545118, 5317677, 7090236, 10635354, 21270708]

約数ペア:

[(1, 21270708), (2, 10635354), (3, 7090236), (4, 5317677), (6, 3545118), (9, 2363412), (12, 1772559), (18, 1181706), (27, 787804), (36, 590853), (37, 574884), (54, 393902), (74, 287442), (108, 196951), (111, 191628), (148, 143721), (222, 95814), (333, 63876), (444, 47907), (666, 31938), (999, 21292), (1332, 15969), (1998, 10646), (3996, 5323)]