21384895

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 31408128

約数和(自身を除く): 10023233

約数列:

[1, 5, 7, 17, 35, 85, 119, 127, 283, 595, 635, 889, 1415, 1981, 2159, 4445, 4811, 9905, 10795, 15113, 24055, 33677, 35941, 75565, 168385, 179705, 251587, 610997, 1257935, 3054985, 4276979, 21384895]

約数ペア:

[(1, 21384895), (5, 4276979), (7, 3054985), (17, 1257935), (35, 610997), (85, 251587), (119, 179705), (127, 168385), (283, 75565), (595, 35941), (635, 33677), (889, 24055), (1415, 15113), (1981, 10795), (2159, 9905), (4445, 4811)]