27984159

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 51723360

約数和(自身を除く): 23739201

約数列:

[1, 3, 7, 9, 17, 21, 29, 51, 53, 63, 87, 119, 153, 159, 203, 261, 289, 357, 371, 477, 493, 609, 867, 901, 1071, 1113, 1479, 1537, 1827, 2023, 2601, 2703, 3339, 3451, 4437, 4611, 6069, 6307, 8109, 8381, 10353, 10759, 13833, 15317, 18207, 18921, 25143, 26129, 31059, 32277, 45951, 56763, 58667, 75429, 78387, 96831, 107219, 137853, 176001, 182903, 235161, 321657, 444193, 528003, 548709, 964971, 1332579, 1646127, 3109351, 3997737, 9328053, 27984159]

約数ペア:

[(1, 27984159), (3, 9328053), (7, 3997737), (9, 3109351), (17, 1646127), (21, 1332579), (29, 964971), (51, 548709), (53, 528003), (63, 444193), (87, 321657), (119, 235161), (153, 182903), (159, 176001), (203, 137853), (261, 107219), (289, 96831), (357, 78387), (371, 75429), (477, 58667), (493, 56763), (609, 45951), (867, 32277), (901, 31059), (1071, 26129), (1113, 25143), (1479, 18921), (1537, 18207), (1827, 15317), (2023, 13833), (2601, 10759), (2703, 10353), (3339, 8381), (3451, 8109), (4437, 6307), (4611, 6069)]