21138240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:344

約数の個数: 112

約数和(自身を含む): 68104512

約数和(自身を除く): 46966272

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 97, 120, 160, 192, 194, 227, 240, 291, 320, 388, 454, 480, 485, 582, 681, 776, 908, 960, 970, 1135, 1164, 1362, 1455, 1552, 1816, 1940, 2270, 2328, 2724, 2910, 3104, 3405, 3632, 3880, 4540, 4656, 5448, 5820, 6208, 6810, 7264, 7760, 9080, 9312, 10896, 11640, 13620, 14528, 15520, 18160, 18624, 21792, 22019, 23280, 27240, 31040, 36320, 43584, 44038, 46560, 54480, 66057, 72640, 88076, 93120, 108960, 110095, 132114, 176152, 217920, 220190, 264228, 330285, 352304, 440380, 528456, 660570, 704608, 880760, 1056912, 1321140, 1409216, 1761520, 2113824, 2642280, 3523040, 4227648, 5284560, 7046080, 10569120, 21138240]

約数ペア:

[(1, 21138240), (2, 10569120), (3, 7046080), (4, 5284560), (5, 4227648), (6, 3523040), (8, 2642280), (10, 2113824), (12, 1761520), (15, 1409216), (16, 1321140), (20, 1056912), (24, 880760), (30, 704608), (32, 660570), (40, 528456), (48, 440380), (60, 352304), (64, 330285), (80, 264228), (96, 220190), (97, 217920), (120, 176152), (160, 132114), (192, 110095), (194, 108960), (227, 93120), (240, 88076), (291, 72640), (320, 66057), (388, 54480), (454, 46560), (480, 44038), (485, 43584), (582, 36320), (681, 31040), (776, 27240), (908, 23280), (960, 22019), (970, 21792), (1135, 18624), (1164, 18160), (1362, 15520), (1455, 14528), (1552, 13620), (1816, 11640), (1940, 10896), (2270, 9312), (2328, 9080), (2724, 7760), (2910, 7264), (3104, 6810), (3405, 6208), (3632, 5820), (3880, 5448), (4540, 4656)]