27698181

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 46402560

約数和(自身を除く): 18704379

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 133, 141, 147, 211, 329, 399, 633, 893, 931, 987, 1477, 2303, 2679, 2793, 4009, 4431, 6251, 6909, 9917, 10339, 12027, 18753, 28063, 29751, 31017, 43757, 69419, 84189, 131271, 188423, 196441, 208257, 485933, 565269, 589323, 1318961, 1457799, 3956883, 9232727, 27698181]

約数ペア:

[(1, 27698181), (3, 9232727), (7, 3956883), (19, 1457799), (21, 1318961), (47, 589323), (49, 565269), (57, 485933), (133, 208257), (141, 196441), (147, 188423), (211, 131271), (329, 84189), (399, 69419), (633, 43757), (893, 31017), (931, 29751), (987, 28063), (1477, 18753), (2303, 12027), (2679, 10339), (2793, 9917), (4009, 6909), (4431, 6251)]