21476763

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1823}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 40974336

約数和(自身を除く): 19497573

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 357, 561, 693, 1071, 1309, 1683, 1823, 3927, 5469, 11781, 12761, 16407, 20053, 30991, 38283, 60159, 92973, 114849, 140371, 180477, 216937, 278919, 340901, 421113, 650811, 1022703, 1263339, 1952433, 2386307, 3068109, 7158921, 21476763]

約数ペア:

[(1, 21476763), (3, 7158921), (7, 3068109), (9, 2386307), (11, 1952433), (17, 1263339), (21, 1022703), (33, 650811), (51, 421113), (63, 340901), (77, 278919), (99, 216937), (119, 180477), (153, 140371), (187, 114849), (231, 92973), (357, 60159), (561, 38283), (693, 30991), (1071, 20053), (1309, 16407), (1683, 12761), (1823, 11781), (3927, 5469)]