21607371

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 12100149

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 503, 999, 1161, 1509, 1591, 4527, 4773, 13581, 14319, 18611, 21629, 42957, 55833, 64887, 167499, 194661, 502497, 583983, 800273, 2400819, 7202457, 21607371]

約数ペア:

[(1, 21607371), (3, 7202457), (9, 2400819), (27, 800273), (37, 583983), (43, 502497), (111, 194661), (129, 167499), (333, 64887), (387, 55833), (503, 42957), (999, 21629), (1161, 18611), (1509, 14319), (1591, 13581), (4527, 4773)]