16440921

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 72

約数和(自身を含む): 30798240

約数和(自身を除く): 14357319

約数列:

[1, 3, 7, 9, 17, 21, 27, 43, 49, 51, 63, 119, 129, 147, 153, 189, 289, 301, 357, 387, 441, 459, 731, 833, 867, 903, 1071, 1161, 1323, 2023, 2107, 2193, 2499, 2601, 2709, 3213, 5117, 6069, 6321, 6579, 7497, 7803, 8127, 12427, 14161, 15351, 18207, 18963, 19737, 22491, 35819, 37281, 42483, 46053, 54621, 56889, 86989, 107457, 111843, 127449, 138159, 260967, 322371, 335529, 382347, 608923, 782901, 967113, 1826769, 2348703, 5480307, 16440921]

約数ペア:

[(1, 16440921), (3, 5480307), (7, 2348703), (9, 1826769), (17, 967113), (21, 782901), (27, 608923), (43, 382347), (49, 335529), (51, 322371), (63, 260967), (119, 138159), (129, 127449), (147, 111843), (153, 107457), (189, 86989), (289, 56889), (301, 54621), (357, 46053), (387, 42483), (441, 37281), (459, 35819), (731, 22491), (833, 19737), (867, 18963), (903, 18207), (1071, 15351), (1161, 14161), (1323, 12427), (2023, 8127), (2107, 7803), (2193, 7497), (2499, 6579), (2601, 6321), (2709, 6069), (3213, 5117)]