21112827

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10820613

約数列:

[1, 3, 17, 23, 41, 51, 69, 123, 391, 439, 697, 943, 1173, 1317, 2091, 2829, 7463, 10097, 16031, 17999, 22389, 30291, 48093, 53997, 171649, 305983, 413977, 514947, 917949, 1241931, 7037609, 21112827]

約数ペア:

[(1, 21112827), (3, 7037609), (17, 1241931), (23, 917949), (41, 514947), (51, 413977), (69, 305983), (123, 171649), (391, 53997), (439, 48093), (697, 30291), (943, 22389), (1173, 17999), (1317, 16031), (2091, 10097), (2829, 7463)]