21502467

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1181}}^1$

素因数の和:1228

約数の個数: 36

約数和(自身を含む): 37738896

約数和(自身を除く): 16236429

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 289, 357, 867, 1071, 1181, 2023, 2601, 3543, 6069, 8267, 10629, 18207, 20077, 24801, 60231, 74403, 140539, 180693, 341309, 421617, 1023927, 1264851, 2389163, 3071781, 7167489, 21502467]

約数ペア:

[(1, 21502467), (3, 7167489), (7, 3071781), (9, 2389163), (17, 1264851), (21, 1023927), (51, 421617), (63, 341309), (119, 180693), (153, 140539), (289, 74403), (357, 60231), (867, 24801), (1071, 20077), (1181, 18207), (2023, 10629), (2601, 8267), (3543, 6069)]