16872219

素因数分解:

$3^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 31951920

約数和(自身を除く): 15079701

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 109, 117, 147, 189, 243, 273, 327, 351, 441, 567, 637, 763, 819, 981, 1053, 1323, 1417, 1701, 1911, 2289, 2457, 2943, 3159, 3969, 4251, 5341, 5733, 6867, 7371, 8829, 9919, 11907, 12753, 16023, 17199, 20601, 22113, 26487, 29757, 38259, 48069, 51597, 61803, 69433, 89271, 114777, 144207, 154791, 185409, 208299, 267813, 344331, 432621, 624897, 803439, 1297863, 1874691, 2410317, 5624073, 16872219]

約数ペア:

[(1, 16872219), (3, 5624073), (7, 2410317), (9, 1874691), (13, 1297863), (21, 803439), (27, 624897), (39, 432621), (49, 344331), (63, 267813), (81, 208299), (91, 185409), (109, 154791), (117, 144207), (147, 114777), (189, 89271), (243, 69433), (273, 61803), (327, 51597), (351, 48069), (441, 38259), (567, 29757), (637, 26487), (763, 22113), (819, 20601), (981, 17199), (1053, 16023), (1323, 12753), (1417, 11907), (1701, 9919), (1911, 8829), (2289, 7371), (2457, 6867), (2943, 5733), (3159, 5341), (3969, 4251)]